| Abbreviation | Definition |
|---|---|
| EHSI | Electronic Horizontal Situation Indicator |
| EHT | Electric Heat Trace |
| EHU | Electrical Hook Up |
| EHV | Electric High Voltage |
| EHV | Extra High Voltage |
| EI | Electric Image |
| EI | Electronic Ignition |
| EI | Electronic Incantations |
| EI | Equipment Integration |
| EI | External Input |
| EIA | Electronic Industries Association |
| EIA | Electronics Industry Association |
| EIA | Extended Interaction Amplifier |
| EIAJ | Electronic Industries Association of Japan |
| EIB | Electronic Invoice Billing |
| EIBJ | Electromigration-Induced Break Junction |
| EIBU | Electronic Interface Blanking Unit |
| EIBW | Effective Instantaneous BandWidth |
| EIC | Electronic Industrial Controls |
| EIC | Electronic Information Center |