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la·bi·um  audio  (lb-m) KEY 

NOUN:
pl. la·bi·a  (-b-) KEY 
  1. Anatomy Any of four folds of tissue of the female external genitalia.
  2. Zoology
    1. A liplike structure, such as that forming the floor of the mouth of certain invertebrates, especially insects.
    2. The inner margin of the opening of a gastropod shell.
  3. Botany One of the liplike divisions of a labiate corolla.
ETYMOLOGY:
Latin, lip; see leb- in Indo-European roots


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