| Abbreviation | Definition |
|---|---|
| ECAD | Electronic Compliance And Dismissal |
| ECAD | Electronic Computer-Aided Design |
| ECAE | Electronic Computer-Aided Engineering |
| ECAG | Electronic Cigarette Aerosol Generator |
| ECAI | Electronic Cultural Atlas Initiative |
| ECAM | Electronic Centralised Aircraft Monitor |
| ECAN | Electronic Commonwealth Assistance Notice |
| ECAP | Electronic Compliance And Approval Process |
| ECAS | Electronic Course Authorization System |
| ECASS | electronic Consolidated Automated Support System |
| ECASS | Electronic Controlled Acoustic Shadow System |
| ECAT | electronic card assembly and test |
| ECAT | Electronic Compliance Audit Tools |
| ECB | Electronic Clearinghouse Bench |
| ECB | Electronic Code Book |
| ECB | Electronic Cross Bar |
| ECC | Electric Cable Conduit |
| ECC | Electronic Cancer Checklists |
| ECC | Electronic Charge Compensation |
| ECC | Electronic Child Care |