| Abbreviation | Definition |
|---|---|
| ECM | endoscope-controlled microneurosurgery |
| ECM | epidemic cerebrospinal meningitis |
| ECM | erythema chronicum migrans |
| ECM | Every Child Matters |
| ECM | experimental cerebral malaria |
| ECM | extended cervical mediastinoscopy |
| ECM | external cardiac massage |
| ECM | extracellular mass |
| ECM | extracellular matrix |
| ECMO | Extracorporeal membrane oxygenation |
| ECN | emergency care network |
| ECN | external carotid nerve |
| ECN | external cuneate nucleus |
| ECN | eye cancer network |
| ECP | Effective Conduction Period |
| ECP | external cardiac pressure |
| ECP | extracellular polysaccharides |
| ECP | extracellular protein |
| ECP | extracorporeal photoimmunotherapy |
| ECP | extracorporeal photopheresis |