| ESR | Einstein stoke radius; electric skin resistance; electron spin resonance; equipment service report; ... |
|---|---|
| ETA | electron transfer agent; endotracheal airways; ethionamide |
| ETC | electron transport chain; esophageal tracheal combitude; estimated time of conception |
| ETF | electron-transferring flavoprotein; eustachian tube function |
| ETFB | electron transfer flavoprotein, beta polypeptide |