| EPID | electronic portal imaging device |
|---|---|
| EPR | early progressive resistance; electron paramagnetic resonance; electronic patient record; electrophr... |
| ERAS | electronic residency application service |
| ESD | electronic summation device; electrostatic discharge; emission spectrometric device; end-systolic di... |
| EV | electronic vehicle; emergency vehicle; enterovirus; epidermodysplasia verruciformis; estradiol valer... |
| linking number | A property of a long biopolymer (such as duplex DNA) equal to the number of twists (related to the frequency of turns around the central axis of the helix) plus the writhing number. (05 Mar 2000) |
|---|---|
| Loschmidt's number | The number of molecules in 1 cm3 of ideal gas at 0캜 and 1 atmosphere of pressure; Avogadro's number divided by 22,414 (i.e., 2.6868 × 1019 cm-3). (05 Mar 2000) |