Engineering English
Engineering Abbreviations & Acronyms
1037 abbreviations engineers actually use — each linked to the engineering term it stands for in the library, with its discipline and, where available, the full dictionary entry. Mined from the Engineering English library of 7,806 curated terms across 20 disciplines. Abbreviations with more than one meaning list every sense.
Last updated: July 30, 2026 · How the library is built
Quick answer: The most common engineering abbreviations include BOM, PLC, JIT, OEE, SPC, NDT — this page explains 1037 of them, grouped alphabetically, with discipline context for every meaning.
A
| AADT | Annual Average Daily Traffic (Civil Engineering) |
|---|---|
| AC | Alternating Current (Electrical Engineering) Acceptance Criteria (Software Engineering) Actual Cost (Engineering Project Management) |
| ACC | Accumulator (Electronics Engineering) |
| ACL | Anti-corruption Layer (Software Engineering) |
| ACM | Air Cycle Machine (Aerospace Engineering) |
| ACR | Recloser (Electrical Engineering) |
| AD | Anaerobic Digestion (Energy Engineering) Airworthiness Directive (Aerospace Engineering) |
| ADC | Analog-to-Digital Converter (Electronics Engineering) |
| ADCS | Attitude Control (Aerospace Engineering) |
| ADT | Annual Average Daily Traffic (AADT) (Civil Engineering) |
| AE | Acoustic Emission (Mechanical Engineering) |
| AEC | Automatic Exposure Control (Biomedical Engineering) |
| AEP | Annual Energy Production (Energy Engineering) |
| AET | Acoustic Emission Testing (Materials Engineering) |
| AFB | Arc Flash Boundary (Engineering Safety) |
| AFCI | Arc Fault Circuit Interrupter (Electrical Engineering) Arc Fault (Energy Engineering) |
| AFD | Arc Fault (Energy Engineering) |
| AFE | Analog Front End (Biomedical Engineering) |
| AFM | Atomic Force Microscopy (Materials Engineering) |
| AFR | Air-fuel Ratio (Mechanical Engineering) |
| AGV | Automatic Guided Vehicle (Industrial Engineering) Automated Guided Vehicle (Manufacturing Engineering) |
| AHP | Analytic Hierarchy Process (Industrial Engineering) |
| AHU | Air Handling Unit (Mechanical Engineering) |
| AIT | Autoignition Temperature (Engineering Safety) |
| ALT | Accelerated Life Test (Quality, Testing & Inspection) |
| AM | Additive Manufacturing (Manufacturing Engineering) Air Mass (Energy Engineering) |
| AMI | Advanced Metering Infrastructure (Energy Engineering) |
| AMM | Aircraft Maintenance Manual (Aerospace Engineering) |
| AMN | Line Impedance Stabilization Network (Electronics Engineering) |
| AMR | Autonomous Mobile Robot (Manufacturing Engineering) Mobile Robot (Mechatronics & Robotics) |
| ANOVA | Analysis Of Variance (Quality, Testing & Inspection) |
| AOA | Angle of Attack (Aerospace Engineering) |
| AOB | Any Other Business (Technical Communication) |
| AON | Activity On Node (Engineering Project Management) |
| APC | Active Power Control (Electrical Engineering) |
| APF | Active Power Filter (Electrical Engineering) |
| APG | Advance Payment Guarantee (Engineering Project Management) |
| APQP | Advanced Product Quality Planning (Quality, Testing & Inspection) |
| APU | Auxiliary Power Unit (Aerospace Engineering) |
| AQI | Air Quality Index (Environmental Engineering) |
| AQL | Acceptable Quality Limit (Quality, Testing & Inspection) |
| AR | Reclosing (Electrical Engineering) Aspect Ratio (Aerospace Engineering) |
| AS/RS | Automated Storage and Retrieval System (Industrial Engineering) |
| ASD-STE100 | Simplified Technical English (Technical Communication) |
| ASI | Airspeed Indicator (Aerospace Engineering) |
| ASL | Approved Supplier List (Quality, Testing & Inspection) |
| AT | Acoustic Emission Testing (Quality, Testing & Inspection) |
| ATC | Tool Changer (Manufacturing Engineering) |
| ATP | Available to Promise (Industrial Engineering) |
| ATS | Automatic Transfer Switch (Electrical Engineering) |
| AV | Appraiser Variation (Quality, Testing & Inspection) |
| AVL | Approved Vendor List (Engineering Project Management) |
| AVR | Automatic Voltage Regulator (Electrical Engineering) |
| AW | Arc Welding (Manufacturing Engineering) |
| AWG | Arbitrary Waveform Generator (Tools, Equipment & Measurements) |
| AWJ | Water Jet Cutting (Manufacturing Engineering) |
B
| B&B | Branch and Bound (Industrial Engineering) |
|---|---|
| BA | Bundle Adjustment (Civil Engineering) |
| BAC | Budget At Completion (Engineering Project Management) |
| BACT | Best Available Control Technology (Environmental Engineering) |
| BAS | Building Automation System (Energy Engineering) |
| BAT | Best Available Techniques (Environmental Engineering) |
| BATNA | Best Alternative to a Negotiated Agreement (Technical Communication) |
| BBS | Bar Bending Schedule (Civil Engineering) Behavior-Based Safety (Engineering Safety) |
| BCC | Blind Carbon Copy (Technical Communication) |
| BDD | Behavior-driven Development (Software Engineering) |
| BEM | Building Energy Simulation (Energy Engineering) |
| BEP | BIM Execution Plan (Civil Engineering) Best Efficiency Point (Mechanical Engineering) |
| BER | Bit Error Rate (Electronics Engineering) |
| BESS | Battery Energy Storage System (Electrical Engineering) Energy Storage System (Energy Engineering) Battery Storage (Energy Engineering) |
| BF | Breaker Failure (Electrical Engineering) |
| BHN | Brinell Hardness (Materials Engineering) |
| BHP | Brake Horsepower (Mechanical Engineering) |
| BIM | Building Information Modeling (Civil Engineering) |
| BIT | Fenwick Tree (Software Engineering) |
| BITE | Built-In Test Equipment (Aerospace Engineering) |
| BJ | Binder Jetting (Manufacturing Engineering) |
| BLE | Bluetooth (Electronics Engineering) |
| BM | Benchmark (Civil Engineering) |
| BMS | Battery Management System (Electrical Engineering) Burner Management System (Chemical Engineering) Building Automation System (Energy Engineering) |
| BN | Boron Nitride (Materials Engineering) |
| BOD | Biochemical Oxygen Demand (Environmental Engineering) Basis Of Design (Technical Communication) |
| BOM | Bill of Materials (Engineering Fundamentals) Bill of Materials Drawing (Tools, Equipment & Measurements) |
| BOQ | Bill Of Quantities (Civil Engineering) |
| BOS | Balance of System (Energy Engineering) |
| BPF | Band-Pass Filter (Electronics Engineering) |
| BRB | Buckling-restrained Brace (Civil Engineering) |
| BSFC | Specific Fuel Consumption (Mechanical Engineering) |
| BT | Behavior Tree (Mechatronics & Robotics) |
| BUE | Built-up Edge (Manufacturing Engineering) |
| BVA | Boundary Value Analysis (Software Engineering) |
| BW | Butt Weld (Mechanical Engineering) Bandwidth (Mechatronics & Robotics) |
| BWIC | Builder's Work In Connection (Civil Engineering) |
| BWS | Basic Wind Speed (Civil Engineering) |
C
| CA | Corrosion Allowance (Mechanical Engineering) Consequence Analysis (Chemical Engineering) Corrective Action (Environmental Engineering) Control Account (Engineering Project Management) |
|---|---|
| CAN | CAN Bus (Electronics Engineering) |
| CAPA | Corrective And Preventive Action (Biomedical Engineering) Corrective Action (Engineering Safety) |
| CAR | Corrective Action Report (Technical Communication) Corrective Action Request (Quality, Testing & Inspection) |
| CB | Circuit Breaker (Electrical Engineering) |
| CBA | Cost-benefit Analysis (Engineering Fundamentals) |
| CBM | Condition-based Maintenance (Mechanical Engineering) |
| CBR | California Bearing Ratio (Civil Engineering) |
| CBS | Cross-belt Sorter (Industrial Engineering) Cost Breakdown Structure (Engineering Project Management) |
| CC | Continuous Casting (Manufacturing Engineering) Carbon Copy (Technical Communication) |
| CCB | Change Control Board (Engineering Project Management) |
| CCE | Cost of Conserved Energy (Energy Engineering) |
| CCF | Common Cause Failure (Engineering Safety) |
| CCGT | Combined Cycle (Energy Engineering) |
| CCM | Critical Chain Method (Engineering Project Management) |
| CCPP | Combined Cycle (Mechanical Engineering) |
| CCR | Critical Cooling Rate (Materials Engineering) |
| CD | Drag Coefficient (Aerospace Engineering) |
| CDE | Common Data Environment (Civil Engineering) |
| CE | Conducted Emission (Electronics Engineering) Coulombic Efficiency (Energy Engineering) |
| CEMF | Back Electromotive Force (Mechatronics & Robotics) |
| CEMS | Continuous Emission Monitoring System (Energy Engineering) Continuous Emissions Monitoring System (Environmental Engineering) |
| CFD | Cumulative Flow Diagram (Software Engineering) Computational Fluid Dynamics (Aerospace Engineering) |
| CFRP | Carbon Fiber Reinforced Polymer (Aerospace Engineering) |
| CG | Center of Gravity (Engineering Fundamentals) |
| CHF | Critical Heat Flux (Chemical Engineering) |
| CHP | Cogeneration (Mechanical Engineering) |
| CI | Continuous Integration (Software Engineering) Continuous Improvement (Industrial Engineering) Confidence Interval (Industrial Engineering) |
| CL | Center Line (Engineering Fundamentals) Lift Coefficient (Aerospace Engineering) |
| CLA | Carry Lookahead Adder (Electronics Engineering) |
| CLM | Channel Length Modulation (Electronics Engineering) |
| CLSM | Confocal Microscopy (Materials Engineering) |
| CLT | Central Limit Theorem (Engineering Fundamentals) |
| CM | Condition Monitoring (Energy Engineering) |
| CMC | Common Mode Choke (Electronics Engineering) Ceramic Matrix Composite (Materials Engineering) Central Maintenance Computer (Aerospace Engineering) |
| CMF | Crash Modification Factor (Civil Engineering) |
| CMM | Coordinate Measuring Machine (Tools, Equipment & Measurements) |
| CMMS | Computerized Maintenance Management System (Biomedical Engineering) |
| CMRR | Common-mode Rejection Ratio (Electronics Engineering) |
| CN | NRCS Curve Number (Civil Engineering) |
| CNR | Contrast-To-Noise Ratio (Biomedical Engineering) |
| CNT | Carbon Nanotube (Materials Engineering) |
| CO | Carbon Monoxide (Environmental Engineering) |
| COD | Crack Tip Opening Displacement (Materials Engineering) Chemical Oxygen Demand (Environmental Engineering) |
| COP | Coefficient of Performance (Mechanical Engineering) |
| COR | Coefficient of Restitution (Engineering Fundamentals) |
| CORS | Cross-Origin Resource Sharing (Software Engineering) |
| CP | Constraint Programming (Industrial Engineering) Cathodic Protection (Materials Engineering) Center of Pressure (Aerospace Engineering) |
| CPFR | Collaborative Planning, Forecasting, and Replenishment (Industrial Engineering) |
| CPI | Cost Performance Index (Engineering Project Management) |
| CPM | Critical Path Method (Industrial Engineering) |
| CPR | Compressor Pressure Ratio (Energy Engineering) |
| CPT | Cone Penetration Test (Civil Engineering) Critical Pitting Temperature (Materials Engineering) |
| CPV | Concentrating Photovoltaic (Energy Engineering) |
| CPW | Cold Welding (Manufacturing Engineering) |
| CQI | Continuous Quality Improvement (Quality, Testing & Inspection) |
| CQRS | Command Query Responsibility Segregation (Software Engineering) |
| CR | Common Rail (Mechanical Engineering) Critical Ratio (Industrial Engineering) Neoprene (Materials Engineering) |
| CRO | Oscilloscope (Electrical Engineering) |
| CRP | Capacity Requirements Planning (Industrial Engineering) |
| CRR | Congestion Revenue Right (Energy Engineering) |
| CRS | Coordinate Reference System (Civil Engineering) |
| CSA | Carry-save Adder (Electronics Engineering) |
| CSD | Constant Speed Drive (Aerospace Engineering) |
| CSE | Confined Space Entry (Chemical Engineering) |
| CSI | Current Source Inverter (Electrical Engineering) |
| CSK | Countersink (Engineering Fundamentals) |
| CSM | Capacity Spectrum Method (Civil Engineering) Conceptual Site Model (Environmental Engineering) |
| CSO | Combined Sewer Overflow (Environmental Engineering) |
| CSP | Content Security Policy (Software Engineering) Concentrated Solar Power (Energy Engineering) |
| CSRF | Cross-site Request Forgery (Software Engineering) |
| CT | Cooling Tower (Mechanical Engineering) Current Transformer (Electrical Engineering) Contact Time (Environmental Engineering) Computed Tomography (Biomedical Engineering) |
| CTC | Computed Torque Control (Mechatronics & Robotics) |
| CTD | Cumulative Trauma Disorder (Industrial Engineering) Counter (Mechatronics & Robotics) |
| CTE | Common Table Expression (Software Engineering) Thermal Expansion Coefficient (Chemical Engineering) Coefficient of Thermal Expansion (Materials Engineering) |
| CTOD | Crack Tip Opening Displacement (Materials Engineering) |
| CTQ | Critical to Quality (Industrial Engineering) |
| CTU | Counter (Mechatronics & Robotics) |
| CUI | Corrosion Under Insulation (Materials Engineering) |
| CV | Process Variable (Mechatronics & Robotics) Hydraulic System Check Valve (Aerospace Engineering) Curriculum Vitae (Technical Communication) Cost Variance (Engineering Project Management) |
| CVD | Chemical Vapor Deposition (Manufacturing Engineering) |
| CVT | Continuously Variable Transmission (Mechanical Engineering) |
D
| D&C | Divide and Conquer (Software Engineering) |
|---|---|
| DA | Distribution Automation (Energy Engineering) |
| DAC | Digital-to-Analog Converter (Electronics Engineering) |
| DAF | Dissolved Air Flotation (Environmental Engineering) |
| DAM | Day-ahead Market (Energy Engineering) |
| DAP | Dose Area Product (Biomedical Engineering) |
| DAQ | Data Acquisition (Mechatronics & Robotics) |
| DAS | Data Acquisition System (Aerospace Engineering) |
| DB | Distribution Board (Electrical Engineering) Diffusion Bonding (Manufacturing Engineering) |
| DBR | Drum-Buffer-Rope (Industrial Engineering) |
| DBTT | Ductile-to-brittle Transition Temperature (Materials Engineering) |
| DC | Direct Current (Electrical Engineering) Distribution Center (Industrial Engineering) Diagnostic Coverage (Engineering Safety) |
| DCF | Discounted Cash Flow (Engineering Project Management) |
| DCS | Distributed Control System (Chemical Engineering) |
| DDD | Domain-driven Design (Software Engineering) |
| DE | Differential Equation (Engineering Fundamentals) |
| DEA | Data Envelopment Analysis (Industrial Engineering) |
| DED | Direct Energy Deposition (Manufacturing Engineering) |
| DEM | Digital Terrain Model (Civil Engineering) Digital Elevation Model (Civil Engineering) |
| DER | Distributed Energy Resources (Energy Engineering) |
| DFA | Design for Assembly (Engineering Fundamentals) |
| DFIG | Doubly-fed Induction Generator (Energy Engineering) |
| DFM | Design for Manufacturing (Engineering Fundamentals) |
| DFS | Depth-first Search (Software Engineering) |
| DFT | Dry Film Thickness (Quality, Testing & Inspection) |
| DHF | Design History File (Biomedical Engineering) |
| DHR | Device History Record (Biomedical Engineering) |
| DHV | Design Hourly Volume (Civil Engineering) |
| DIC | Digital Image Correlation (Materials Engineering) |
| DICOM | DICOM Standard (Biomedical Engineering) |
| DIP | Dependency Inversion Principle (Software Engineering) |
| DLM | Doublet Lattice Method (Aerospace Engineering) |
| DLP | Digital Light Processing (Manufacturing Engineering) Vat Photopolymerization (Manufacturing Engineering) Defects Liability Period (Engineering Project Management) |
| DLQ | Dead Letter Queue (Software Engineering) |
| DLRO | Micro-ohmmeter (Electrical Engineering) |
| DMM | Multimeter (Electrical Engineering) |
| DMR | Device Master Record (Biomedical Engineering) |
| DMX | DMX512 (Electronics Engineering) |
| DO | Dissolved Oxygen (Environmental Engineering) |
| DOE | Design of Experiments (Engineering Fundamentals) |
| DOF | Degrees of Freedom (Engineering Fundamentals) Degree of Freedom (Mechanical Engineering) Mobility (Mechanical Engineering) |
| DP | Dynamic Programming (Software Engineering) |
| DPC | Damp-proof Course (Civil Engineering) |
| DPF | Displacement Power Factor (Electrical Engineering) |
| DPI | Liquid Penetrant Testing (Quality, Testing & Inspection) |
| DPMO | Defects Per Million Opportunities (Quality, Testing & Inspection) |
| DPU | Defects Per Unit (Industrial Engineering) |
| DQE | Detective Quantum Efficiency (Biomedical Engineering) |
| DR | Demand Response (Electrical Engineering) Disaster Recovery (Software Engineering) Design Review Meeting (Technical Communication) |
| DRL | Diagnostic Reference Level (Biomedical Engineering) |
| DRP | Distribution Requirements Planning (Industrial Engineering) |
| DSC | Differential Scanning Calorimetry (Materials Engineering) |
| DSM | Digital Surface Model (Civil Engineering) Demand-side Management (Energy Engineering) |
| DSO | Distribution System Operator (Energy Engineering) |
| DSR | Demand-side Resource (Energy Engineering) |
| DSU | Union-Find (Software Engineering) |
| DT | Distribution Transformer (Electrical Engineering) Destructive Test (Quality, Testing & Inspection) |
| DTI | Dial Test Indicator (Tools, Equipment & Measurements) Dial Indicator (Tools, Equipment & Measurements) |
| DTT | Direct Transfer Trip (Electrical Engineering) |
| DW | Data Warehouse (Software Engineering) |
| DWA | Dynamic Window Approach (Mechatronics & Robotics) |
| DWP | Design Wind Pressure (Civil Engineering) |
E
| E2PROM | EEPROM (Electronics Engineering) |
|---|---|
| EAC | Estimate At Completion (Engineering Project Management) |
| EBM | Electron Beam Melting (Manufacturing Engineering) |
| EBPR | Enhanced Biological Phosphorus Removal (Environmental Engineering) |
| EBSD | Electron Backscatter Diffraction (Materials Engineering) |
| EBW | Electron Beam Welding (Manufacturing Engineering) |
| ECM | ECU (Mechanical Engineering) Energy Conservation Measure (Energy Engineering) |
| ECN | Engineering Change Order (Tools, Equipment & Measurements) |
| ECO | Engineering Change Order (Technical Communication) |
| ECP | Equivalence Partitioning (Software Engineering) Electropolishing (Manufacturing Engineering) |
| ECT | Eddy Current Testing (Quality, Testing & Inspection) |
| ED | Economic Dispatch (Energy Engineering) |
| EDD | Earliest Due Date (Industrial Engineering) Environmental Due Diligence (Environmental Engineering) |
| EDM | Electrical Discharge Machining (Manufacturing Engineering) |
| EDMS | Electronic Document Management System (Technical Communication) |
| EDS | Energy-dispersive X-ray Spectroscopy (Materials Engineering) |
| EDX | Energy-dispersive X-ray Spectroscopy (Materials Engineering) |
| EEM | Energy Conservation Measure (ECM) (Energy Engineering) |
| EEV | Electronic Expansion Valve (Mechanical Engineering) |
| EFL | Earth Fault Loop Impedance (Electrical Engineering) |
| EGR | Exhaust Gas Recirculation (Mechanical Engineering) |
| EGS | Enhanced Geothermal System (Energy Engineering) |
| EGT | Exhaust Gas Temperature (Energy Engineering) |
| EHSV | Servo Valve (Aerospace Engineering) |
| EI | Flexural Rigidity (Civil Engineering) |
| EIA | Environmental Impact Assessment (Chemical Engineering) |
| EIA-232 | RS-232 (Electronics Engineering) |
| EIA-422 | RS-422 (Electronics Engineering) |
| EIA-485 | RS-485 (Electronics Engineering) |
| EIM | Energy Imbalance Market (Energy Engineering) |
| EIS | Electrochemical Impedance Spectroscopy (Materials Engineering) |
| EIV | Emergency Isolation Valve (Engineering Safety) |
| ELR | Earth Leakage Relay (Electrical Engineering) |
| EMA | Modal Analysis (Mechanical Engineering) |
| EMC | Electromagnetic Compatibility (Electrical Engineering) |
| EMI | Electromagnetic Interference (Electrical Engineering) |
| EMS | Energy Management System (Electrical Engineering) Energy Monitoring System (Energy Engineering) Environmental Management System (Environmental Engineering) |
| EMV | Expected Monetary Value (Engineering Project Management) |
| EOAT | End Effector (Mechatronics & Robotics) |
| EOQ | Economic Order Quantity (Industrial Engineering) |
| EOS | Equation of State (Chemical Engineering) |
| EOT | Extension Of Time (Civil Engineering) |
| EP | Epoxy Resin (Materials Engineering) |
| EPB | Earth Pressure Balance (Civil Engineering) |
| EPC | Energy Performance Certificate (Energy Engineering) Engineering Procurement And Construction (Engineering Project Management) |
| EPMA | Electron Probe Microanalysis (Materials Engineering) |
| EPR | Extended Producer Responsibility (Environmental Engineering) |
| EQE | Quantum Efficiency (Energy Engineering) |
| ERD | Entity-relationship Diagram (Software Engineering) |
| ERP | Enterprise Resource Planning (Industrial Engineering) Emergency Response Plan (Chemical Engineering) |
| ERT | Emergency Response Team (Engineering Safety) |
| ES | Early Start (Engineering Project Management) Earned Schedule (Engineering Project Management) |
| ESAL | Equivalent Single Axle Load (Civil Engineering) |
| ESCA | X-ray Photoelectron Spectroscopy (Materials Engineering) |
| ESCO | Energy Service Company (Energy Engineering) |
| ESD | Electrostatic Discharge (Electronics Engineering) Emergency Shutdown (Chemical Engineering) |
| ESP | Electrostatic Precipitator (Chemical Engineering) |
| ESPE | Presence Sensing Device (Engineering Safety) |
| ESR | Equivalent Series Resistance (Electronics Engineering) |
| ESW | Electroslag Welding (Manufacturing Engineering) |
| ET | Evapotranspiration (Civil Engineering) Eddy Current Testing (Materials Engineering) |
| ETA | Event Tree Analysis (Chemical Engineering) |
| ETC | Estimate To Complete (Engineering Project Management) |
| EV | Equipment Variation (Quality, Testing & Inspection) Earned Value (Engineering Project Management) |
| EXW | Explosion Welding (Manufacturing Engineering) |
F
| F-PLC | Safety PLC (Engineering Safety) |
|---|---|
| FA | Full Adder (Electronics Engineering) |
| FAC | Flow Accelerated Corrosion (Materials Engineering) First Aid Case (Engineering Safety) |
| FADEC | Full Authority Digital Engine Control (Aerospace Engineering) |
| FAI | First Article Inspection (Manufacturing Engineering) |
| FAT | Acceptance Test (Quality, Testing & Inspection) Factory Acceptance Test (Engineering Project Management) |
| FBB | Fluidized Bed Boiler (Energy Engineering) |
| FBD | Free Body Diagram (Engineering Fundamentals) Function Block Diagram (Mechatronics & Robotics) |
| FBP | Filtered Back Projection (Biomedical Engineering) |
| FBW | Fly-by-Wire (Aerospace Engineering) |
| FCAW | Flux-cored Arc Welding (Manufacturing Engineering) |
| FCE | Final Control Element (Chemical Engineering) |
| FCF | Feature Control Frame (Engineering Fundamentals) |
| FCG | Fatigue Crack Growth (Mechanical Engineering) |
| FCL | Fault Current Limiter (Electrical Engineering) |
| FCS | Flight Control System (Aerospace Engineering) |
| FCU | Fan Coil Unit (Mechanical Engineering) Fuel Control Unit (Aerospace Engineering) |
| FCV | Fuel Cell Electric Vehicle (Energy Engineering) Flow Control Valve (Aerospace Engineering) |
| FDC | Flow Duration Curve (Civil Engineering) |
| FDM | Finite Difference Method (Engineering Fundamentals) Fused Deposition Modeling (Manufacturing Engineering) |
| FEA | Finite Element Analysis (Mechanical Engineering) |
| FEM | Finite Element Method (Engineering Fundamentals) Finite Element Analysis (Aerospace Engineering) |
| FF | Foundation Fieldbus (Mechatronics & Robotics) Fill Factor (Energy Engineering) Fuel System Flow Meter (Aerospace Engineering) Free Float (Engineering Project Management) |
| FFF | Fused Deposition Modeling (Manufacturing Engineering) |
| FFT | Fast Fourier Transform (Mechanical Engineering) |
| FGD | Flue Gas Desulfurization (Environmental Engineering) |
| FGM | Functionally Graded Material (Materials Engineering) |
| FGR | Flue Gas Recirculation (Environmental Engineering) |
| FIB | Focused Ion Beam (Materials Engineering) |
| FIFO | Queue (Software Engineering) |
| FIT | Feed-in Tariff (Energy Engineering) |
| FK | Foreign Key (Software Engineering) |
| FMEA | Failure Mode and Effects Analysis (Engineering Fundamentals) |
| FML | Geomembrane (Environmental Engineering) |
| FMS | Flexible Manufacturing System (Manufacturing Engineering) Flight Management System (Aerospace Engineering) |
| FN | Ferrite Number (Materials Engineering) |
| FOC | Field-oriented Control (Electrical Engineering) Vector Control (Electrical Engineering) |
| FOV | Field Of View (Biomedical Engineering) |
| FP | Flash Point (Chemical Engineering) |
| FPBW | Full-power Bandwidth (Electronics Engineering) |
| FPD | Flat Panel Detector (Biomedical Engineering) |
| FPY | Yield (Industrial Engineering) First Pass Yield (Quality, Testing & Inspection) |
| FQIS | Fuel Quantity Indication System (Aerospace Engineering) |
| FRF | Frequency Response Function (Mechanical Engineering) Transfer Function (Mechanical Engineering) |
| FRT | Fault Ride-through (Electrical Engineering) |
| FSM | State Machine (Electronics Engineering) |
| FSW | Friction Stir Welding (Manufacturing Engineering) |
| FT | Fourier Transform (Engineering Fundamentals) |
| FTA | Fault Tree Analysis (Engineering Fundamentals) |
| FTI | Flight Test Instrumentation (Aerospace Engineering) |
| FTIR | Fourier Transform Infrared Spectroscopy (Materials Engineering) |
| FTR | Financial Transmission Right (Energy Engineering) |
| FVF | Fiber Volume Fraction (Materials Engineering) |
| FVM | Finite Volume Method (Aerospace Engineering) |
| FW | Flash Welding (Manufacturing Engineering) Filament Winding (Materials Engineering) |
| FWD | Falling Weight Deflectometer (Civil Engineering) |
G
| GA | Genetic Algorithm (Industrial Engineering) |
|---|---|
| GAC | Granular Activated Carbon (Environmental Engineering) |
| GBP | Gain-bandwidth Product (Electronics Engineering) |
| GBW | Gain-bandwidth Product (Electronics Engineering) |
| GC | Garbage Collection (Software Engineering) |
| GCL | Geosynthetic Clay Liner (Civil Engineering) |
| GCP | Ground Control Point (Civil Engineering) |
| GCU | Generator Control Unit (Aerospace Engineering) |
| GD&T | Geometric Dimensioning and Tolerancing (Tools, Equipment & Measurements) |
| GEC | Grounding Electrode Conductor (Electrical Engineering) |
| GEO | Geostationary Orbit (Aerospace Engineering) |
| GFCI | Ground Fault Circuit Interrupter (Engineering Safety) |
| GFI | Ground Fault Circuit Interrupter (Electrical Engineering) |
| GFMI | Grid-forming Inverter (Electrical Engineering) |
| GHG | Greenhouse Gas (Energy Engineering) |
| GHS | Globally Harmonized System (Engineering Safety) |
| GHSV | Space Velocity (Chemical Engineering) |
| GLA | Gust Load Alleviation (Aerospace Engineering) |
| GM | Gain Margin (Mechatronics & Robotics) |
| GMAW | MIG Welding (Manufacturing Engineering) |
| GNSS | Satellite Navigation (Aerospace Engineering) |
| GPR | Earth Potential Rise (Electrical Engineering) |
| GPU | Ground Power Unit (Aerospace Engineering) |
| GRF | Ground Reaction Force (Biomedical Engineering) |
| GSE | Ground Support Equipment (Aerospace Engineering) |
| GTAW | TIG Welding (Manufacturing Engineering) |
| GTP | Goods-to-Person (Industrial Engineering) |
| GVT | Ground Vibration Test (Aerospace Engineering) |
| GWT | Guided Wave Testing (Materials Engineering) |
H
| H.T.U. | Height of a Transfer Unit (Chemical Engineering) |
|---|---|
| H/P | Hydraulic Pump (Aerospace Engineering) |
| HA | Half Adder (Electronics Engineering) |
| HAC | Hazardous Area Classification (Chemical Engineering) |
| HART | HART Communication (Chemical Engineering) |
| HAV | Hand-Arm Vibration (Engineering Safety) |
| HAZ | Heat Affected Zone (Manufacturing Engineering) |
| HAZID | Hazard Identification (Chemical Engineering) |
| HAZOP | Hazard and Operability Study (Chemical Engineering) |
| HB | Brinell Hardness (Materials Engineering) |
| HCM | Highway Capacity Manual (Civil Engineering) |
| HCP | Hearing Conservation Program (Engineering Safety) |
| HEX | Heat Exchanger (Chemical Engineering) |
| HFE | Human Factors (Industrial Engineering) |
| HGL | Hydraulic Grade Line (Civil Engineering) Hydraulic Gradient Line (Mechanical Engineering) |
| HHRA | Human Health Risk Assessment (Environmental Engineering) |
| HIC | Hydrogen Embrittlement (Materials Engineering) Hydrogen Induced Cracking (Materials Engineering) |
| HIP | Hot Isostatic Pressing (Manufacturing Engineering) |
| HMD | Hexamethylene Diamine (Chemical Engineering) |
| HMI | Human Machine Interface (Manufacturing Engineering) |
| HMR | Hot Reload (Software Engineering) |
| HP-IB | GPIB (Electronics Engineering) |
| HPDC | Die Casting (Manufacturing Engineering) |
| HPF | High-Pass Filter (Electronics Engineering) |
| HRB | Rockwell Hardness (Materials Engineering) |
| HRC | Rockwell Hardness (Materials Engineering) |
| HRI | Human-robot Interaction (Mechatronics & Robotics) |
| HRSG | Heat Recovery Steam Generator (Mechanical Engineering) |
| HRT | Hydraulic Retention Time (Environmental Engineering) |
| HSM | High-speed Machining (Manufacturing Engineering) |
| HTM | Homogeneous Transformation Matrix (Mechatronics & Robotics) |
| HU | Hounsfield Unit (Biomedical Engineering) |
| HV | Vickers Hardness (Materials Engineering) |
| HVL | Half-Value Layer (Biomedical Engineering) |
I
| I&I | Infiltration And Inflow (Environmental Engineering) |
|---|---|
| IAS | Air Sparging (Environmental Engineering) |
| IC | Instant Center (Mechanical Engineering) Integrated Circuit (Electronics Engineering) |
| ICE | Internal Combustion Engine (Mechanical Engineering) |
| IDC | Interdisciplinary Check (Technical Communication) |
| IDE | Investigational Device Exemption (Biomedical Engineering) |
| IDG | Integrated Drive Generator (Aerospace Engineering) |
| IDLH | Immediately Dangerous To Life And Health (Engineering Safety) |
| IDOR | Insecure Direct Object Reference (Software Engineering) |
| IDS | Intrusion Detection System (Software Engineering) |
| IEEE-488 | GPIB (Electronics Engineering) |
| IFC | Industry Foundation Classes (Civil Engineering) Issued For Construction (Technical Communication) |
| IFR | Issued For Review (Technical Communication) |
| IFT | Issued For Tender (Technical Communication) |
| IFU | Instructions For Use (Biomedical Engineering) |
| IGC | Intergranular Corrosion (Materials Engineering) |
| IH | Induction Hardening (Manufacturing Engineering) |
| IIC | I2C (Electronics Engineering) |
| IIR | Butyl Rubber (Materials Engineering) |
| IIS | I2S (Electronics Engineering) |
| IK | Inverse Kinematics (Mechatronics & Robotics) |
| IL | Instruction List (Mechatronics & Robotics) |
| ILP | Integer Programming (Industrial Engineering) |
| ILSS | Interlaminar Shear Strength (Materials Engineering) |
| IM | Induction Motor (Mechatronics & Robotics) |
| IMU | Inertial Measurement Unit (Civil Engineering) |
| INA | Instrumentation Amplifier (Biomedical Engineering) |
| INS | Inertial Navigation (Aerospace Engineering) |
| IPC | Interim Payment Certificate (Civil Engineering) |
| IPL | Interrupt Priority (Electronics Engineering) Independent Protection Layer (Engineering Safety) |
| IPT | Interpass Temperature (Manufacturing Engineering) |
| IQ | Installation Qualification (Biomedical Engineering) |
| IQE | Quantum Efficiency (Energy Engineering) |
| IQI | Image Quality Indicator (Quality, Testing & Inspection) |
| IR | Internal Resistance (Electrical Engineering) Insulation Resistance (Electrical Engineering) |
| IRI | International Roughness Index (Civil Engineering) |
| IRQ | Interrupt (Electronics Engineering) |
| IRR | Internal Rate Of Return (Engineering Project Management) |
| IRT | Infrared Thermography (Quality, Testing & Inspection) |
| ISCO | In Situ Chemical Oxidation (Environmental Engineering) |
| ISD | Inherently Safer Design (Chemical Engineering) |
| ISE | Ion-Selective Electrode (Biomedical Engineering) |
| ISO | Piping Isometric (Mechanical Engineering) Independent System Operator (Energy Engineering) |
| ITB | Tender (Engineering Project Management) |
| ITP | Inspection And Test Plan (Quality, Testing & Inspection) |
| ITT | Invitation To Tender (Engineering Project Management) |
| IX | Ion Exchange (Environmental Engineering) |
J
| JIT | Just-In-Time (Industrial Engineering) |
|---|---|
| JSA | Job Safety Analysis (Industrial Engineering) |
K
| KIC | Fracture Toughness (Materials Engineering) |
|---|---|
| KO | Knockout (Electrical Engineering) |
| KPI | Performance Metric (Engineering Fundamentals) Key Performance Indicator (Industrial Engineering) Safety Performance Indicator (Engineering Safety) |
L
| L4L | Lot-for-lot (Industrial Engineering) |
|---|---|
| LBS | Load Break Switch (Electrical Engineering) |
| LBW | Laser Beam Welding (Manufacturing Engineering) |
| LC | Letter Of Credit (Engineering Project Management) |
| LCA | Life Cycle Assessment (Engineering Fundamentals) |
| LCC | Life Cycle Cost (Engineering Project Management) |
| LCO | Limit Cycle Oscillation (Aerospace Engineering) |
| LCOE | Levelized Cost of Energy (Energy Engineering) |
| LCRS | Leachate Collection System (Environmental Engineering) |
| LD | Ladder Logic (Mechatronics & Robotics) |
| LDC | Load Duration Curve (Energy Engineering) |
| LE | Leading Edge (Aerospace Engineering) |
| LEL | Lower Explosive Limit (Engineering Safety) |
| LEO | Low Earth Orbit (Aerospace Engineering) |
| LES | Large Eddy Simulation (Aerospace Engineering) |
| LEV | Fume Extraction (Engineering Safety) |
| LF | Late Finish (Engineering Project Management) |
| LFG | Landfill Gas (Environmental Engineering) |
| LFP | Lithium Iron Phosphate (Energy Engineering) |
| LFSR | Linear Feedback Shift Register (Electronics Engineering) |
| LHSV | Space Velocity (Chemical Engineering) |
| LI | Lifting Index (Industrial Engineering) |
| LIBS | Laser-induced Breakdown Spectroscopy (Materials Engineering) |
| LIFO | Stack (Software Engineering) |
| LISN | Line Impedance Stabilization Network (Electronics Engineering) |
| LLP | Life Limited Part (Aerospace Engineering) |
| LM | Optical Microscopy (Materials Engineering) |
| LMC | Least Material Condition (Tools, Equipment & Measurements) |
| LMI | Load Moment Indicator (Engineering Safety) |
| LMP | Locational Marginal Pricing (Energy Engineering) |
| LMTD | Log Mean Temperature Difference (Mechanical Engineering) |
| LOB | Line Of Balance (Engineering Project Management) |
| LOC | Loss Of Containment (Engineering Safety) |
| LOD | Level of Development (Civil Engineering) |
| LOE | Level Of Effort (Engineering Project Management) |
| LOI | Letter Of Intent (Engineering Project Management) |
| LOPA | Layer Of Protection Analysis (Engineering Safety) |
| LOS | Level of Service (Civil Engineering) |
| LOTO | Lockout Tagout (Engineering Safety) |
| LP | Linear Programming (Industrial Engineering) |
| LPBF | Laser Powder Bed Fusion (Manufacturing Engineering) |
| LPD | Lighting Power Density (Energy Engineering) |
| LPF | Low-Pass Filter (Electronics Engineering) |
| LPL | Lightning Protection Level (Electrical Engineering) |
| LPR | Linear Polarization Resistance (Materials Engineering) |
| LQR | Linear Quadratic Regulator (Mechatronics & Robotics) |
| LRB | Lead Rubber Bearing (Civil Engineering) |
| LRU | Line Replaceable Unit (Aerospace Engineering) |
| LSA | Least Squares Adjustment (Civil Engineering) |
| LSE | Load Serving Entity (Energy Engineering) |
| LSL | Lower Specification Limit (Quality, Testing & Inspection) |
| LTC | Load Tap Changer (Electrical Engineering) |
| LTI | Lost Time Injury (Engineering Safety) |
| LTIFR | Injury Frequency Rate (Engineering Safety) |
| LTTD | Thermal Desorption (Environmental Engineering) |
| LUT | Look-up Table (Electronics Engineering) |
| LVRT | Low Voltage Ride-through (Electrical Engineering) |
M
| M&V | Measurement and Verification (Energy Engineering) |
|---|---|
| MAH | Major Accident Hazard (Chemical Engineering) |
| MAWP | Maximum Allowable Working Pressure (Mechanical Engineering) |
| MBR | Membrane Bioreactor (Environmental Engineering) |
| MC | Mechanical Completion (Mechanical Engineering) Motion Controller (Mechatronics & Robotics) |
| MCB | Miniature Circuit Breaker (Electrical Engineering) |
| MCC | Motor Control Center (Electrical Engineering) |
| MCL | Monte Carlo Localization (Mechatronics & Robotics) |
| MCSA | Motor Current Signature Analysis (Mechanical Engineering) |
| MCU | Microcontroller (Electronics Engineering) |
| MCWP | Mast Climbing Work Platform (Engineering Safety) |
| MDP | Markov Decision Process (Industrial Engineering) |
| MDR | Master Document Register (Technical Communication) |
| MEA | Microelectrode Array (Biomedical Engineering) |
| MEL | Minimum Equipment List (Aerospace Engineering) |
| MES | Manufacturing Execution System (Manufacturing Engineering) |
| MET | Main Earthing Terminal (Electrical Engineering) |
| MEWP | Mobile Elevating Work Platform (Engineering Safety) |
| MF | Microfiltration (Environmental Engineering) |
| MFA | Multifactor Authentication (Software Engineering) |
| MFC | Mass Flow Controller (Chemical Engineering) |
| MFI | Melt Flow Index (Chemical Engineering) |
| MFL | Magnetic Flux Leakage (Materials Engineering) |
| MFR | Melt Flow Index (Chemical Engineering) |
| MHS | Material Handling System (Manufacturing Engineering) |
| MILP | Mixed-integer Programming (Industrial Engineering) |
| MIP | Mixed-integer Programming (Industrial Engineering) |
| MITM | Man-in-the-middle Attack (Software Engineering) |
| MLPE | Microinverter (Energy Engineering) |
| MLSS | Mixed Liquor Suspended Solids (Environmental Engineering) |
| MMC | Maximum Material Condition (Engineering Fundamentals) Metal Matrix Composite (Materials Engineering) |
| MMF | Magnetomotive Force (Electrical Engineering) |
| MMI | HMI (Chemical Engineering) |
| MMIO | Memory-mapped I/O (Electronics Engineering) |
| MMS | Mobile Mapping System (Civil Engineering) |
| MNA | Monitored Natural Attenuation (Environmental Engineering) |
| MOC | Management of Change (Chemical Engineering) |
| MON | Octane Rating (Mechanical Engineering) |
| MOPP | Means Of Patient Protection (Biomedical Engineering) |
| MOQ | Minimum Order Quantity (Industrial Engineering) |
| MOU | Memorandum of Understanding (Technical Communication) |
| MOVC | Circular Interpolation (Mechatronics & Robotics) |
| MOVL | Linear Interpolation (Mechatronics & Robotics) |
| MPC | Model Predictive Control (Chemical Engineering) |
| MPI | Magnetic Particle Inspection (Materials Engineering) Magnetic Particle Testing (Quality, Testing & Inspection) |
| MPPT | Maximum Power Point Tracking (Electrical Engineering) |
| MPS | Master Production Schedule (Industrial Engineering) Magnetostrictive Position Sensor (Mechatronics & Robotics) |
| MPU | Microprocessor (Electronics Engineering) |
| MR | Management Reserve (Engineering Project Management) |
| MRB | Material Review Board (Industrial Engineering) |
| MRF | Material Recovery Facility (Environmental Engineering) |
| MRI | Magnetic Resonance Imaging (Biomedical Engineering) |
| MRP | Material Requirements Planning (Industrial Engineering) |
| MRR | Material Removal Rate (Manufacturing Engineering) |
| MSA | Measurement System Analysis (Biomedical Engineering) Master Service Agreement (Engineering Project Management) |
| MSD | Musculoskeletal Disorder (Industrial Engineering) |
| MSDS | Material Safety Data Sheet (Chemical Engineering) Safety Data Sheet (Engineering Safety) |
| MST | Minimum Spanning Tree (Software Engineering) |
| MT | Magnetic Particle Testing (Quality, Testing & Inspection) |
| MTBF | Mean Time Between Failures (Mechanical Engineering) |
| MTC | Material Certificate (Materials Engineering) Medical Treatment Case (Engineering Safety) |
| MTF | Modulation Transfer Function (Biomedical Engineering) |
| MTM | Methods-Time Measurement (Industrial Engineering) |
| MTO | Quantity Takeoff (Engineering Project Management) |
| MTPE | Machine Translation Post-Editing (Technical Communication) |
| MTTF | Mean Time To Failure (Quality, Testing & Inspection) |
| MTTR | Mean Time to Repair (Manufacturing Engineering) |
| MUTCD | Manual on Uniform Traffic Control Devices (Civil Engineering) |
| MUX | Multiplexer (Electronics Engineering) |
| MV | Manipulated Variable (Chemical Engineering) |
| MWL | Modality Worklist (Biomedical Engineering) |
N
| NA | Neutral Axis (Civil Engineering) |
|---|---|
| NAPL | Nonaqueous Phase Liquid (Environmental Engineering) |
| NBR | Nitrile Rubber (Materials Engineering) |
| NC | Numerical Control (Manufacturing Engineering) |
| NCR | Nonconformance Report (Biomedical Engineering) Nonconformity (Engineering Safety) Non-Conformance Report (Technical Communication) |
| NDA | Non-Disclosure Agreement (Technical Communication) |
| NDE | Nondestructive Testing (Aerospace Engineering) Non-Destructive Testing (Quality, Testing & Inspection) |
| NDT | Non-Destructive Testing (Materials Engineering) Nondestructive Testing (Aerospace Engineering) |
| NF | Nanofiltration (Environmental Engineering) |
| NFP | Near-field Probe (Electronics Engineering) |
| NGR | Neutral Grounding Resistor (Electrical Engineering) |
| NLP | Nonlinear Programming (Industrial Engineering) |
| NMI | Non-maskable Interrupt (Electronics Engineering) |
| NPS | Nominal Pipe Size (Mechanical Engineering) |
| NPSH | Net Positive Suction Head (Mechanical Engineering) |
| NPV | Net Present Value (Engineering Project Management) |
| NR | Natural Rubber (Materials Engineering) |
| NRC | Noise Reduction Coefficient (Mechanical Engineering) |
| NRV | Check Valve (Chemical Engineering) |
| NTP | Notice to Proceed (Technical Communication) |
| NTU | Number of Transfer Units (Chemical Engineering) |
| NVA | Non-value-added (Industrial Engineering) |
| NWS | Nose Wheel Steering (Aerospace Engineering) |
O
| OAS | OpenAPI Specification (Software Engineering) |
|---|---|
| OCV | Open Circuit Voltage (Energy Engineering) |
| ODE | Differential Equation (Engineering Fundamentals) |
| OEE | Overall Equipment Effectiveness (Industrial Engineering) |
| OEL | Exposure Limit (Engineering Safety) |
| OFI | Opportunity For Improvement (Quality, Testing & Inspection) |
| OHL | Overhead Line (Electrical Engineering) |
| OHS | Occupational Safety (Engineering Safety) |
| OLTC | Load Tap Changer (Electrical Engineering) |
| OOT | Out Of Tolerance (Quality, Testing & Inspection) |
| OPC-UA | OPC UA (Mechatronics & Robotics) |
| OPF | Optimal Power Flow (Energy Engineering) |
| OQ | Operational Qualification (Biomedical Engineering) |
| OR | Operations Research (Industrial Engineering) |
| ORC | Organic Rankine Cycle (Mechanical Engineering) |
| OTD | On-time Delivery (Industrial Engineering) |
| OVP | Overvoltage Protection (Electronics Engineering) |
P
| P&ID | Piping And Instrumentation Diagram (Mechanical Engineering) |
|---|---|
| P&P | Pick and Place (Electronics Engineering) |
| P&T | Pump And Treat (Environmental Engineering) |
| P2 | Pollution Prevention (Environmental Engineering) |
| P2G | Power-to-gas (Energy Engineering) |
| PA | Nylon (Materials Engineering) |
| PAC | Production Activity Control (Industrial Engineering) Plasma Cutting (Manufacturing Engineering) Programmable Automation Controller (Mechatronics & Robotics) Powdered Activated Carbon (Environmental Engineering) |
| PACS | Picture Archiving And Communication System (Biomedical Engineering) |
| PAUT | Ultrasonic Phased Array (Materials Engineering) Phased Array Ultrasonic Testing (Quality, Testing & Inspection) |
| PB | Proportional Band (Chemical Engineering) |
| PBT | Polybutylene Terephthalate (Materials Engineering) |
| PC | Polycarbonate (Materials Engineering) |
| PCB | Printed Circuit Board (Electronics Engineering) |
| PCC | Point of Common Coupling (Electrical Engineering) |
| PCG | Parent Company Guarantee (Engineering Project Management) |
| PCI | Pavement Condition Index (Civil Engineering) |
| PCI-E | PCI Express (Electronics Engineering) |
| PCM | ECU (Mechanical Engineering) |
| PDE | Differential Equation (Engineering Fundamentals) |
| Probability Density Function (Engineering Fundamentals) | |
| PDI | Polydispersity Index (Chemical Engineering) |
| PDM | Precedence Diagramming Method (Engineering Project Management) |
| PDMS | Silicone Elastomer (Biomedical Engineering) |
| PE | Polyethylene (Chemical Engineering) |
| PEEK | Polyetheretherketone (Biomedical Engineering) |
| PEM | Proton Exchange Membrane (Energy Engineering) |
| PERT | Program Evaluation And Review Technique (Engineering Project Management) |
| PF | Power Factor (Electrical Engineering) |
| PFC | Power Factor Correction (Electrical Engineering) |
| PFD | Process Flow Diagram (Chemical Engineering) Probability Of Failure On Demand (Engineering Safety) |
| PFL | Power and Force Limiting (Mechatronics & Robotics) |
| PFR | Tubular Reactor (Chemical Engineering) |
| PG | Power Good (Electronics Engineering) |
| PGA | Peak Ground Acceleration (Civil Engineering) |
| PGOOD | Power Good (Electronics Engineering) |
| PHA | Process Hazard Analysis (Chemical Engineering) |
| PHE | Plate Heat Exchanger (Mechanical Engineering) |
| PI | Plasticity Index (Civil Engineering) Polyimide (Materials Engineering) |
| PID | Potential Induced Degradation (Energy Engineering) |
| PK | Primary Key (Software Engineering) |
| PKI | Public Key Infrastructure (Software Engineering) |
| PL | Performance Level (Engineering Safety) |
| PLA | Polylactic Acid (Biomedical Engineering) |
| PLC | Power Line Carrier (Electrical Engineering) Programmable Logic Controller (Chemical Engineering) |
| PLL | Phase-Locked Loop (Electrical Engineering) |
| PM | Preventive Maintenance (Mechanical Engineering) Phase Margin (Electronics Engineering) Particulate Matter (Environmental Engineering) Project Manager (Engineering Project Management) |
| PMA | Premarket Approval (Biomedical Engineering) |
| PMF | Propellant Mass Fraction (Aerospace Engineering) |
| PMMA | Acrylic (Materials Engineering) |
| PMS | Pavement Management System (Civil Engineering) Post-Market Surveillance (Biomedical Engineering) |
| PMTS | Predetermined Motion Time System (Industrial Engineering) |
| PMU | Synchrophasor (Electrical Engineering) Phasor Measurement Unit (Electrical Engineering) |
| PMV | Partial Molar Volume (Chemical Engineering) |
| PO | Product Owner (Software Engineering) Purchase Order (Technical Communication) |
| POM | Acetal (Materials Engineering) |
| PPA | Power Purchase Agreement (Energy Engineering) |
| PPAP | Production Part Approval Process (Quality, Testing & Inspection) |
| PPE | Personal Protective Equipment (Engineering Safety) |
| PPG | Photoplethysmography (Biomedical Engineering) |
| PPP | Polluter Pays Principle (Environmental Engineering) |
| PQ | Power Quality (Energy Engineering) Performance Qualification (Biomedical Engineering) Prequalification (Engineering Project Management) |
| PR | Pull Request (Software Engineering) Performance Ratio (Energy Engineering) Purchase Requisition (Engineering Project Management) |
| PRB | Permeable Reactive Barrier (Environmental Engineering) |
| PREN | Pitting Resistance Equivalent Number (Materials Engineering) |
| PRM | Probabilistic Roadmap (Mechatronics & Robotics) |
| PRS | Planetary Roller Screw (Mechanical Engineering) |
| PRT | RTD (Mechatronics & Robotics) |
| PRV | Pressure Relief Valve (Mechanical Engineering) Pressure Reducing Valve (Mechanical Engineering) Relief Valve (Chemical Engineering) Hydraulic System Pressure Relief Valve (Aerospace Engineering) |
| PSA | Pressure Swing Adsorption (Chemical Engineering) |
| PSB | Power Swing Blocking (Electrical Engineering) |
| PSCC | Prospective Short-circuit Current (Electrical Engineering) |
| PSD | Power Spectral Density (Biomedical Engineering) |
| PSH | Peak Sun Hours (Energy Engineering) |
| PSHA | Seismic Hazard Analysis (Civil Engineering) |
| PSI | Process Safety Information (Chemical Engineering) |
| PSM | Process Safety Management (Chemical Engineering) |
| PSSR | Pre-Startup Safety Review (Chemical Engineering) |
| PT | Post-tensioning (Civil Engineering) Potential Transformer (Electrical Engineering) Dye Penetrant Inspection (Materials Engineering) Liquid Penetrant Testing (Quality, Testing & Inspection) Proficiency Testing (Quality, Testing & Inspection) |
| PTC | Parabolic Trough (Energy Engineering) |
| PTH | Plated Through-hole (Electronics Engineering) |
| PTO | Power Take-off (Mechanical Engineering) |
| PTU | Power Transfer Unit (Aerospace Engineering) |
| PTW | Permit to Work (Engineering Safety) |
| PUR | Polyurethane (Materials Engineering) |
| PV | PersistentVolume (Software Engineering) Process Variable (Chemical Engineering) Pervaporation (Chemical Engineering) Planned Value (Engineering Project Management) |
| PVC | Polyvinyl Chloride (Materials Engineering) |
| PVD | Physical Vapor Deposition (Manufacturing Engineering) |
| PWA | Progressive Web App (Software Engineering) |
| PWHT | Post Weld Heat Treatment (Mechanical Engineering) Stress Relief (Manufacturing Engineering) |
| PWL | Sound Power Level (Mechanical Engineering) |
| PWM | Pulse Width Modulation (Mechatronics & Robotics) |
Q
| QA | Quality Assurance (Software Engineering) |
|---|---|
| QC | Quality Control (Quality, Testing & Inspection) |
| QFD | Quality Function Deployment (Engineering Fundamentals) |
| QMS | Quality Management System (Biomedical Engineering) |
| QP | Quality Plan (Quality, Testing & Inspection) |
| QRA | Quantitative Risk Assessment (Chemical Engineering) Quantitative Risk Analysis (Engineering Project Management) |
| QRC | Quick Reference Card (Technical Communication) |
| QSG | Quick Start Guide (Technical Communication) |
| QSSA | Steady-state Approximation (Chemical Engineering) |
R
| RAMAN | Raman Spectroscopy (Materials Engineering) |
|---|---|
| RANS | Reynolds-Averaged Navier-Stokes (Aerospace Engineering) |
| RAS | Return Activated Sludge (Environmental Engineering) |
| RAT | Ram Air Turbine (Aerospace Engineering) |
| RATA | Relative Accuracy Test Audit (Environmental Engineering) |
| RBC | Rotating Biological Contactor (Environmental Engineering) |
| RBD | Reliability Block Diagram (Quality, Testing & Inspection) |
| RBS | Risk Breakdown Structure (Engineering Project Management) |
| RC | Reference Counting (Software Engineering) |
| RCA | Root Cause Analysis (Engineering Fundamentals) Ripple Carry Adder (Electronics Engineering) |
| RCCB | Earth Leakage Circuit Breaker (Electrical Engineering) |
| RCCP | Rough Cut Capacity Planning (Industrial Engineering) |
| RCD | Residual Current Device (Electrical Engineering) |
| RCM | Reliability-centered Maintenance (Mechanical Engineering) |
| RD | Rupture Disc (Chemical Engineering) Remaining Duration (Engineering Project Management) |
| RDF | Refuse-derived Fuel (Environmental Engineering) |
| RDS | Rate-determining Step (Chemical Engineering) Rapid Shutdown (Energy Engineering) |
| RE | Radiated Emission (Electronics Engineering) |
| REC | Renewable Energy Certificate (Energy Engineering) |
| RFB | Flow Battery (Energy Engineering) |
| RFI | Request For Information (Technical Communication) |
| RFP | Request for Proposal (Technical Communication) |
| RFQ | Request for Quotation (Industrial Engineering) |
| RH | Reheater (Energy Engineering) |
| RIM | Reaction Injection Molding (Manufacturing Engineering) |
| RK4 | Runge-Kutta Method (Engineering Fundamentals) |
| RL | Return Loss (Electronics Engineering) |
| RLD | Right Leg Drive Circuit (Biomedical Engineering) |
| RMC | Ready-Mix Concrete (Civil Engineering) |
| RMS | Root Mean Square (Engineering Fundamentals) |
| RN | React Native (Software Engineering) |
| RO | Reverse Osmosis (Chemical Engineering) |
| ROI | Return on Investment (Energy Engineering) |
| RON | Octane Rating (Mechanical Engineering) |
| ROP | Reorder Point (Industrial Engineering) |
| ROS | Robot Operating System (Mechatronics & Robotics) |
| ROW | Right of Way (Civil Engineering) |
| RP | Rapid Prototyping (Manufacturing Engineering) |
| RPE | Respirator (Engineering Safety) |
| RPM | Spindle Speed (Manufacturing Engineering) Rotor Speed (Energy Engineering) |
| RPN | Risk Priority Number (Biomedical Engineering) |
| RPS | Renewable Portfolio Standard (Energy Engineering) |
| RRT | Rapidly-exploring Random Tree (Mechatronics & Robotics) |
| RS | Rapid Shutdown (Energy Engineering) |
| RS-274X | Gerber File (Electronics Engineering) |
| RSA | Road Safety Audit (Civil Engineering) |
| RSI | Repetitive Strain (Industrial Engineering) |
| RSM | Response Surface Methodology (Quality, Testing & Inspection) |
| RSW | Spot Welding (Manufacturing Engineering) |
| RT | Radiographic Testing (Mechanical Engineering) |
| RTC | Real-Time Clock (Electronics Engineering) |
| RTD | Residence Time Distribution (Chemical Engineering) Resistance Temperature Detector (Tools, Equipment & Measurements) |
| RTE | Round-trip Efficiency (Electrical Engineering) |
| RTK | RTK GPS (Civil Engineering) |
| RTM | Resin Transfer Molding (Manufacturing Engineering) |
| RTO | Regenerative Thermal Oxidizer (Environmental Engineering) |
| RTP | Real-Time Pricing (Energy Engineering) |
| RTU | Remote Terminal Unit (Chemical Engineering) |
| RTY | Rolled Throughput Yield (Industrial Engineering) |
| RVDT | Rotary Variable Differential Transformer (Mechatronics & Robotics) |
| RWC | Restricted Work Case (Engineering Safety) |
S
| S&OP | Sales and Operations Planning (Industrial Engineering) |
|---|---|
| SA | Spectrum Analyzer (Electronics Engineering) Simulated Annealing (Industrial Engineering) |
| SAL | Sterility Assurance Level (Biomedical Engineering) |
| SAM | Scanning Acoustic Microscopy (Materials Engineering) |
| SAML | Security Assertion Markup Language (Software Engineering) |
| SAR | Specific Absorption Rate (Biomedical Engineering) |
| SAST | Static Code Analysis (Software Engineering) |
| SAT | Site Acceptance Test (Engineering Project Management) |
| SAW | Submerged Arc Welding (Manufacturing Engineering) |
| SB | Service Bulletin (Aerospace Engineering) |
| SBR | Sequencing Batch Reactor (Environmental Engineering) |
| SCAR | Supplier Corrective Action Request (Quality, Testing & Inspection) |
| SCC | Stress Corrosion Cracking (Materials Engineering) |
| SCE | Supply Curve of Conserved Energy (Energy Engineering) |
| SCF | Stress Concentration Factor (Engineering Fundamentals) |
| SCR | Thyristor (Electrical Engineering) Selective Catalytic Reduction (Energy Engineering) |
| SD | Standard Deviation (Engineering Fundamentals) |
| SDC | Seismic Design Category (Civil Engineering) |
| SDS | Material Safety Data Sheet (Chemical Engineering) Safety Data Sheet (Engineering Safety) |
| SE | Shielding Effectiveness (Electronics Engineering) Standard Error (Industrial Engineering) State Estimation (Energy Engineering) |
| SEER | Seasonal Energy Efficiency Ratio (Energy Engineering) |
| SEM | Scanning Electron Microscopy (Materials Engineering) |
| SF | Safety Function (Engineering Safety) |
| SFC | Specific Fuel Consumption (Mechanical Engineering) Shop Floor Control (Industrial Engineering) Single Fault Condition (Biomedical Engineering) |
| SFD | Shear Diagram (Engineering Fundamentals) |
| SFE | Supercritical Fluid Extraction (Chemical Engineering) |
| SFF | Safe Failure Fraction (Engineering Safety) |
| SG | Specific Gravity (Chemical Engineering) |
| SH | Superheater (Energy Engineering) |
| SHM | Harmonic Motion (Mechanical Engineering) |
| SI | Strain Index (Industrial Engineering) |
| SIF | Stress Intensity Factor (Mechanical Engineering) Safety Instrumented Function (Engineering Safety) |
| SIGSEGV | Segmentation Fault (Software Engineering) |
| SIGT | Steam Injection (Energy Engineering) |
| SIL | Safety Integrity Level (Chemical Engineering) |
| SIS | Safety Instrumented System (Chemical Engineering) |
| SKU | Stock Keeping Unit (Industrial Engineering) |
| SLA | Stereolithography (Manufacturing Engineering) Vat Photopolymerization (Manufacturing Engineering) |
| SLD | Single-line Diagram (Electrical Engineering) |
| SLM | Laser Powder Bed Fusion (Manufacturing Engineering) |
| SLS | Selective Laser Sintering (Manufacturing Engineering) Safely Limited Speed (Engineering Safety) |
| SM | Scrum Master (Software Engineering) Static Margin (Aerospace Engineering) |
| SMC | Sliding Mode Control (Mechatronics & Robotics) |
| SME | Shape Memory Effect (Materials Engineering) |
| SMM | Standard Method Of Measurement (Civil Engineering) |
| SMPS | Switched-mode Power Supply (Electrical Engineering) |
| SMS | Safety Management System (Engineering Safety) |
| SMT | Surface Mount Technology (Electronics Engineering) |
| SNCR | Selective Non-Catalytic Reduction (Environmental Engineering) |
| SNR | Signal-to-Noise Ratio (Electronics Engineering) |
| SO2 | Sulfur Dioxide (Environmental Engineering) |
| SOA | Safe Operating Area (Electrical Engineering) Service-oriented Architecture (Software Engineering) |
| SOC | State of Charge (Electronics Engineering) |
| SOFC | Solid Oxide Fuel Cell (Energy Engineering) |
| SOP | State of Power (Electrical Engineering) Standard Operating Procedure (Industrial Engineering) |
| SOUP | Software Of Unknown Provenance (Biomedical Engineering) |
| SOW | Statement of Work (Technical Communication) Scope Of Work (Engineering Project Management) |
| SP | Stack Pointer (Electronics Engineering) Stochastic Programming (Industrial Engineering) Set Point (Chemical Engineering) |
| SPA | Single-page Application (Software Engineering) |
| SPC | Statistical Process Control (Industrial Engineering) |
| SPD | Surge Protective Device (Electrical Engineering) |
| SPI | Schedule Performance Index (Engineering Project Management) |
| SPL | Sound Pressure Level (Mechanical Engineering) |
| SPT | Standard Penetration Test (Civil Engineering) Shortest Processing Time (Industrial Engineering) |
| SQC | Statistical Quality Control (Quality, Testing & Inspection) |
| SR | Slew Rate (Electronics Engineering) Spectral Response (Energy Engineering) |
| SRE | Site Reliability Engineering (Software Engineering) |
| SRL | Self-Retracting Lifeline (Engineering Safety) |
| SRM | Solid Rocket Motor (Aerospace Engineering) |
| SRMS | Safety-Rated Monitored Stop (Engineering Safety) |
| SRT | Solids Retention Time (Environmental Engineering) |
| SSB | Solid-state Battery (Energy Engineering) |
| SSC | Sulfide Stress Cracking (Materials Engineering) |
| SSD | Sight Distance (Civil Engineering) |
| SSI | Soil-structure Interaction (Civil Engineering) |
| SSL/TLS | TLS (Software Engineering) |
| SSM | Speed and Separation Monitoring (Mechatronics & Robotics) |
| SSN | Ground Bounce (Electronics Engineering) |
| SSO | Single Sign-on (Software Engineering) |
| SSR | Server-Side Rendering (Software Engineering) |
| ST | Structured Text (Mechatronics & Robotics) |
| STATCOM | Static Synchronous Compensator (Electrical Engineering) |
| STC | Sound Transmission Class (Mechanical Engineering) |
| STE | Simplified Technical English (Technical Communication) |
| STHE | Shell and Tube Heat Exchanger (Mechanical Engineering) |
| STO | Safe Torque Off (Mechatronics & Robotics) |
| STP | System Turnover Package (Engineering Project Management) |
| SV | Schedule Variance (Engineering Project Management) |
| SVC | Static VAR Compensator (Electrical Engineering) |
| SVE | Soil Vapor Extraction (Environmental Engineering) |
| SVI | Sludge Volume Index (Environmental Engineering) |
| SVM | Space Vector Modulation (Electrical Engineering) |
| SVRR | Power Supply Rejection Ratio (Electronics Engineering) |
| SWA | Stop Work Authority (Engineering Safety) |
| SWG | Spiral Wound Gasket (Mechanical Engineering) |
| SWL | Sound Power Level (Mechanical Engineering) Safe Working Load (Engineering Safety) |
| SWMS | Method Statement (Engineering Project Management) |
| SWP | Safe Work Procedure (Engineering Safety) |
| SWR | Standing Wave Ratio (Electrical Engineering) |
T
| T1 | Fundamental Period (Civil Engineering) |
|---|---|
| TAN | Acid Number (Mechanical Engineering) |
| TAR | Test Uncertainty Ratio (Quality, Testing & Inspection) |
| TBC | Thermal Barrier Coating (Materials Engineering) |
| TBD | Trunk-based Development (Software Engineering) |
| TBM | Tunnel Boring Machine (Civil Engineering) |
| TBN | Base Number (Mechanical Engineering) |
| TBO | Time Between Overhaul (Aerospace Engineering) |
| TBT | Toolbox Talk (Technical Communication) |
| TC | Thermocouple (Chemical Engineering) |
| TCLP | Toxicity Characteristic Leaching Procedure (Environmental Engineering) |
| TCO | Total Cost of Ownership (Industrial Engineering) |
| TCP | Tool Center Point (Mechatronics & Robotics) |
| TCPI | To-Complete Performance Index (Engineering Project Management) |
| TCR | Thyristor Controlled Reactor (Electrical Engineering) |
| TCV | Cabin Temperature Control Valve (Aerospace Engineering) |
| TDD | Total Demand Distortion (Electrical Engineering) Test-Driven Development (Software Engineering) |
| TDH | Pump Head (Mechanical Engineering) Total Dynamic Head (Mechanical Engineering) |
| TDR | Cable Fault Locator (Electrical Engineering) Time Domain Reflectometer (Electrical Engineering) |
| TDS | Time Dial Setting (Electrical Engineering) Total Dissolved Solids (Environmental Engineering) |
| TE | Trailing Edge (Aerospace Engineering) Echo Time (Biomedical Engineering) |
| TED | Basic Dimension (Engineering Fundamentals) |
| TEM | Transmission Electron Microscopy (Materials Engineering) |
| TET | Turbine Inlet Temperature (Energy Engineering) Exhaust Gas Temperature (Energy Engineering) |
| TF | Terraform (Software Engineering) Total Float (Engineering Project Management) |
| THD | Total Harmonic Distortion (Electrical Engineering) |
| THT | Through-Hole Technology (Electronics Engineering) |
| TI | Turbulence Intensity (Energy Engineering) |
| TIA | Traffic Impact Analysis (Civil Engineering) Transimpedance Amplifier (Electronics Engineering) Time Impact Analysis (Engineering Project Management) |
| TIT | Turbine Inlet Temperature (Energy Engineering) |
| TL | Sound Transmission Loss (Mechanical Engineering) |
| TLD | Tuned Liquid Damper (Civil Engineering) |
| TLV | Exposure Limit (Engineering Safety) Threshold Limit Value (Engineering Safety) |
| TM | Translation Memory (Technical Communication) |
| TMD | Tuned Mass Damper (Civil Engineering) |
| TMS | Transportation Management System (Industrial Engineering) |
| TOC | Table Of Contents (Technical Communication) |
| TOFD | Time Of Flight Diffraction (Quality, Testing & Inspection) |
| TPA | Terephthalic Acid (Chemical Engineering) |
| TPE | Thermoplastic Elastomer (Materials Engineering) |
| TPF | True Power Factor (Electrical Engineering) |
| TPM | Total Productive Maintenance (Mechanical Engineering) |
| TPR | Thermoplastic Elastomer (Materials Engineering) |
| TQ | Technical Query (Technical Communication) |
| TQM | Total Quality Management (Industrial Engineering) |
| TRIFR | Total Recordable Incident Rate (Engineering Safety) |
| TRIR | Total Recordable Incident Rate (Engineering Safety) |
| TRU | Transformer Rectifier Unit (Aerospace Engineering) |
| TS | TypeScript (Software Engineering) Tabu Search (Industrial Engineering) |
| TSC | Thyristor Switched Capacitor (Electrical Engineering) |
| TSO | Transmission System Operator (Energy Engineering) |
| TSP | Traveling Salesman Problem (Industrial Engineering) |
| TSR | Tip Speed Ratio (Energy Engineering) |
| TSS | Total Suspended Solids (Environmental Engineering) |
| TTR | Travel Time Reliability (Civil Engineering) |
| TUR | Test Uncertainty Ratio (Quality, Testing & Inspection) |
| TVC | Thrust Vector Control (Aerospace Engineering) Thrust Vectoring (Aerospace Engineering) |
| TVSS | Surge Protective Device (Electrical Engineering) |
| TWA | Time-Weighted Average (Engineering Safety) |
| TWC | Temporary Works Coordinator (Engineering Safety) |
| TXV | Thermostatic Expansion Valve (Mechanical Engineering) |
U
| UAT | Acceptance Testing (Software Engineering) |
|---|---|
| UAV | Drone (Mechatronics & Robotics) |
| UB | Undefined Behavior (Software Engineering) |
| UC | Unit Commitment (Energy Engineering) |
| UDI | Unique Device Identification (Biomedical Engineering) |
| UDS | Under-deposit Corrosion (Materials Engineering) |
| UF | Ultrafiltration (Chemical Engineering) |
| UFW | Non-revenue Water (Environmental Engineering) |
| UH | Unit Hydrograph (Civil Engineering) |
| UHMWPE | Ultra-High-Molecular-Weight Polyethylene (Biomedical Engineering) |
| UPR | Polyester Resin (Materials Engineering) |
| UPS | Uninterruptible Power Supply (Electrical Engineering) |
| URRA | Use-Related Risk Analysis (Biomedical Engineering) |
| USCS | Unified Soil Classification System (Civil Engineering) |
| USL | Upper Specification Limit (Quality, Testing & Inspection) |
| UST | Underground Storage Tank (Environmental Engineering) |
| UT | Ultrasonic Testing (Materials Engineering) |
| UTM | Universal Testing Machine (Materials Engineering) Ultrasonic Thickness Measurement (Quality, Testing & Inspection) |
| UTS | Tensile Strength (Engineering Fundamentals) Ultimate Strength (Materials Engineering) |
| UVLO | Under-voltage Lockout (Electronics Engineering) |
V
| VA | Value-added (Industrial Engineering) |
|---|---|
| VAC | Variance At Completion (Engineering Project Management) |
| VARI | Vacuum Infusion (Manufacturing Engineering) |
| VARTM | Vacuum Infusion (Manufacturing Engineering) |
| VC | Video Conference (Technical Communication) |
| VCA | Voice Coil Actuator (Mechatronics & Robotics) |
| VCE | Vapor Cloud Explosion (Chemical Engineering) |
| VCT | Variable Valve Timing (Mechanical Engineering) |
| VDR | Varistor (Electronics Engineering) Vendor Document Requirement (Engineering Project Management) |
| VE | Value Engineering (Engineering Fundamentals) Volumetric Efficiency (Mechanical Engineering) |
| VFD | Variable Frequency Drive (Electrical Engineering) |
| VFG | Variable Frequency Generator (Aerospace Engineering) |
| VHF | Voltage Harmonic Factor (Electrical Engineering) |
| VHT | Vacuum Heat Treatment (Materials Engineering) |
| VI | Viscosity Index (Mechanical Engineering) |
| VLE | Vapor-liquid Equilibrium (Chemical Engineering) |
| VLM | Vortex Lattice Method (Aerospace Engineering) |
| VM | Virtual Machine (Software Engineering) |
| VMI | Vendor Managed Inventory (Industrial Engineering) |
| VNA | Vector Network Analyzer (Electronics Engineering) |
| VO | Variation Order (Civil Engineering) Visual Odometry (Mechatronics & Robotics) Velocity Obstacle (Mechatronics & Robotics) |
| VOC | Volatile Organic Compound (Environmental Engineering) |
| VOM | Multimeter (Electrical Engineering) |
| VPP | Virtual Power Plant (Energy Engineering) |
| VRF | Variable Refrigerant Flow (Mechanical Engineering) |
| VRP | Vehicle Routing Problem (Industrial Engineering) |
| VRU | Vapor Recovery Unit (Environmental Engineering) |
| VSD | Variable Speed Drive (Energy Engineering) |
| VSI | Voltage Source Inverter (Electrical Engineering) |
| VSM | Value Stream Mapping (Industrial Engineering) |
| VSWR | Standing Wave Ratio (Electrical Engineering) |
| VT | Thermal Voltage (Electronics Engineering) Visual Inspection (Materials Engineering) |
| VVT | Variable Valve Timing (Mechanical Engineering) |
W
| WAS | Waste Activated Sludge (Environmental Engineering) |
|---|---|
| WBGT | Wet Bulb Globe Temperature (Engineering Safety) |
| WBS | Work Breakdown Structure (Engineering Project Management) |
| WBV | Whole-Body Vibration (Engineering Safety) |
| WCET | Worst-case Execution Time (Electronics Engineering) |
| WDT | Watchdog Timer (Electronics Engineering) |
| WEEE | Electronic Waste (Environmental Engineering) |
| WF | Wide Flange Section (Civil Engineering) Work Factor (Industrial Engineering) |
| WI | Work Instruction (Technical Communication) |
| WIP | Work In Progress (Industrial Engineering) |
| WLAN | Wi‑Fi (Electronics Engineering) |
| WLI | White Light Interferometry (Materials Engineering) |
| WLL | Safe Working Load (Engineering Safety) |
| WPS | Weld Procedure Specification (Mechanical Engineering) Welding Procedure Specification (Manufacturing Engineering) |
X
| XPDR | Transponder (Aerospace Engineering) |
|---|---|
| XPS | X-ray Photoelectron Spectroscopy (Materials Engineering) |
| XRD | X-ray Diffraction (Materials Engineering) |
| XRF | X-ray Fluorescence (Materials Engineering) |
| XSS | Cross-site Scripting (Software Engineering) |
Y
| YSZ | Zirconia (Materials Engineering) Zirconia Ceramic (Biomedical Engineering) |
|---|
Z
| ZVS | Zero Voltage Switching (Electrical Engineering) |
|---|
Frequently asked questions
What are the most common engineering abbreviations?
Common engineering abbreviations include CAD (Computer-Aided Design), BOM (Bill of Materials), PLC (Programmable Logic Controller), JIT (Just-In-Time), OEE (Overall Equipment Effectiveness) and SPC (Statistical Process Control). This page lists 1037 abbreviations used across 20 engineering disciplines, mined from the Engineering English term library.
Can the same abbreviation have different meanings in engineering?
Yes. Many abbreviations are discipline-dependent — for example CI means Continuous Improvement in industrial engineering but Continuous Integration in software engineering. Entries on this page list every meaning with its discipline.
Where do these abbreviations come from?
Every entry is taken from the Engineering English app's curated library of 7,806 terms; abbreviations are recorded alongside their parent terms and linked to full dictionary entries where available.
Learn the full terms behind the abbreviations
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