壳叶亚纲：根足总纲(Rhizopoda)叶足纲(Lobosea)阿米巴样原虫亚纲，其特点为：虫体为壳、顶盖或其他居质膜及糖复膜外的被膜所包围，包括表壳虫目(Arce-llinida)和毛片目(Trichosida)- lactotherapy
- lactotoxin
- lactotrope
- lactotroph
- lactotrophin; lactotropin
- lactovegetarian
- lactoylglutathione lyase
- Lactuca
- lactulose
- lacuna
- lacunae
- lacunar
- lacune
- lacunule
- lacus
- Ladd-Franklin theory
- Ladendorff's test
- Ladin's sign
- lae-
- Laelaps
- Laennec's catarrh, etc.
- Laetrile
- laeve
- laev(o)-
- Lafora's bodies, disease, sign