| Em | mid-point redox potential |
|---|---|
| EP | echo planar; ectopic pregnancy; edible portion; electrophoresis; electrophysiologic; electroprecipit... |
| EPP | end-plate potential; equal pressure point; erythropoietic protoporphyria |
| EPSS | E-point septal separation |
| fp | flexor pollicis; foot-pound; forearm pronated; freezing point |