| Abbreviation | Definition |
|---|---|
| AVS | Automatic Voltage Stability |
| AVT | Accelerated Vesication Test |
| AWE | Asymptotic Waveform Evaluation |
| AWG | American Wire Gauge |
| AWG | Arbitrary Waveform Generator |
| AWI | Audio Wave Information |
| AWLC | Automatic Water Level Controller |
| AWM | Advanced Wave Memory |
| AWM | Advanced Waveform Modulation |
| AWRS | Auto Wire Rethread System |
| AWS | Advanced Wet Station |
| AXI | Automated X-Ray Inspection |
| AZE | A to Z electronic |
| B | form B (normally closed) contacts |
| B&O | Bang Olufsen |
| B&O | Bang & Olufsen |
| B/O | Bypass/Overflow |
| B/P | Bi Polar |
| BAC | Beam Attenuation Coefficient |
| BACT | Best Available Control Technology |