| Acronym | Definition |
|---|
| ECTU➣Edinburgh Clinical Trials Unit |
| ECTU➣Extension Computing Technology Unit (Oregon State University) |
| ECTU➣Enhanced Channel Test Unit |
| ECTU➣East County Teachers Uniserv (California Teachers Association) |
| ECTU➣Echinochloa Turneriana |
| ECTU➣European Credit Transfer Units |
| ECTU➣Elite Counter-Terrorism Unit (gaming) |
| ECTU➣Encuentro de Comercializacion Turistica de Aviabue |