前弓反张：同emprosthotonos- lecithin
- lecithinase
- lecithin-cholesterol acyltransferase (LCAT)
- lecithinemia
- lecith(o)-
- lecithoblast
- lecithoprotein
- lecithovitellin
- lectin
- lectotype
- Le Dentu's suture
- Lederberg
- Ledercillin
- leech
- leeching
- Lee's ganglion
- Leeuwenhoekia australiensis
- LEF
- Le Fort fracture
- left-handed
- leg
- Legal's disease,test
- Legg-Calvé-Perthes disease
- Legg's disease
- leghemoglobin