| Abbreviation | Definition |
|---|---|
| ERMA | lectronic Recording Machine |
| ERMC | Electrical Rigid Metallic Conduit |
| ERME | EPIC Radiation Monitor Electronics |
| ERMP | Electrical Regulatory Management Plan |
| ERN | Electronic Registration Number |
| ERN | External Recurrent Neural network |
| ERNIE | Electronic Random Number Indicating Equipment |
| ERO | Electronic Registrar Online |
| ERO | Electronic Release Order |
| EROA | Electronic Record on Appeal |
| EROFT | Electronic Rituals Oracles and Fortune Telling |
| EROM | Electronic Register of Members |
| EROM | Electronic Run Out Machine |
| ERP | Extended Range Pyrometer |
| ERPS | electronic Representative Payee System |
| ERPT | Electronic Reappointment Promotion and Tenure |
| ERPT | Electronic Retroactive Processing Transmission |
| ERR | Electronic Regulatory Reporting |
| ERRS | Emergency Response Radio System |
| ERS | Electronic Registry Systems |