| Abbreviation | Definition |
|---|---|
| ELWC | Electrical Line Worker Certificate |
| EM | Edit Mode |
| EM | Electric Monk |
| EM | Electrical Malfunction |
| EM | Electricity Magnets |
| EM | electromagnet |
| EM | ElectroMagnetic |
| EM | ElectroMigration |
| EM | Electron Microscopy |
| EM | Electronic Mail |
| EM | Electronic Marcom |
| EM | Electronic Music |
| EM | Engineering Manual |
| EM | Enterprise Model |
| EM64T | Extended Memory 64-bit Technology |
| EMA | Easy Magnetization Axis |
| EMA | Electric Mobile Aerodrome |
| EMAC | Electronic Media Arts and Communication |
| EMAD | Externally Mounted Adjustable Damping |
| Electronic Mail And Is Like |