| LEL | lower explosive limit; lowest effect level |
|---|---|
| LEPN | effective perceived noise level |
| LL | large lymphocyte; lateral leminiscus; left lateral; left leg; left lower; left lung; lepromatous [in... |
| LLQ | left lower quadrant; low-level question |
| LOC | laxative of choice; level of consciousness; liquid organic compound; locus of control; loss of consc... |