| LEL | lower explosive limit; lowest effect level |
|---|---|
| LEP | lethal effective phase; lipoprotein electrophoresis; low egg passage; lower esophagus |
| LES | Lambert-Eaton syndrome; Lawrence Experimental Station [agar]; local excitatory state; Locke egg seru... |
| LESP | lower esophageal sphincter pressure |
| l/ext | lower extremity |