| Abbreviation | Definition |
|---|---|
| ECIG | Electric Cigarette |
| ECIL | Electronics Corporation of India Limited |
| ECIM | Electronic Communication and Information Management |
| ECIN | Electronic Commerce Info Net |
| ECIS | Electric cell-substrate impedance sensing |
| ECIS | Electrical Consulting and Inspection Services |
| ECIS | Electronic Course Instructor Surveys |
| ECIT | Electronics, Communications and Information Technology |
| ECL | Electronic Combination Lock |
| ECL | Emitter Coupled Logic |
| ECLB | Electrical Contractor Licensing Board |
| ECLB | Electrical Contractors Licensing Board |
| ECLIPSE | Electronic Claim Lodgement and Information Processing Service Environment |
| ECLIPSE | Electronic Commercial Licensing Inspection Permit Services Enterprise |
| ECLPS | Electronic Course Layout and Presentation System |
| ECLPS | Electronic Course Layout Presentation System |
| ECM | Electronic Control Module |
| ECM | Electronic Counter Measure |
| ECM | Electronic Counter Measures |
| ECM | Electronic Counter-Measures |