| E(X) | expected value of the random variable X |
|---|---|
| E* | lesion on the erythrocyte cell membrane at the site of complement fixation |
| e+ | positron |
| e- | negative electron |
| E-ADD | epileptic attentional deficit disorder |
| E-C | ether-chloroform [mixture] |
| E-CABG | endarterectomy and coronary artery bypass graft |
| E-D | ego-defense; Ehlers-Danlos [syndrome] |
| E-diol | estradiol |
| E-E | erythema-edema [reaction] |