| Abbreviation | Definition |
|---|---|
| EC | exercise capacity |
| EC | exfoliative cytology |
| EC | existing commitments |
| EC | experimental control |
| EC | expiratory centre |
| EC | extended care |
| EC | exterior coat |
| EC | external capsule |
| EC | extracellular |
| EC | extracellular concentration |
| EC | extracorporeal |
| EC | extracorporeal circulation |
| EC | eye care |
| ECA | Edgbaston Commissioning Alliance |
| ECA | electrical control activity |
| ECA | Emergency Care Assistant |
| ECA | endothelial cell activation |
| ECA | endothelial cell antibody |
| ECA | enteric-coated aspirin |
| ECA | enterobacterial common antigen |