| Abbreviation | Definition |
|---|---|
| EMT | Electronic Masters Of Tapestry |
| EMTE | electronic Multi Trophic Ecosystem |
| EMTR | Electronic Modular Test Rig |
| EMU | Electric Multiple Units |
| EMU | Electrical Multiple Unit |
| EMU | Electro-Magnetic Unit |
| EMUS | Electro-Mechanical Units and Systems |
| EMUU | Electronic Meaningful Use Utility |
| EMV | Electromagnetic Valve |
| EMW | Electric Motor Werks |
| EMW | Electronic Music Works |
| EN | Electric network/grid |
| EN | Energy Note |
| ENAM | Electronic National Agriculture Market |
| ENAR | Electronic Neuro Adaptive Regulation |
| ENC | Electronic Navigational Charts |
| ENC | Electronic Network Communication |
| ENC | Electronic Noise Cancelling |
| ENC | Electronics and Computer |
| ENDOR | Electron Nuclear DOuble Resonance |