labium

[ley-bee-uh m] /ˈleɪ bi əm/
noun, plural labia
[ley-bee-uh] /ˈleɪ bi ə/ (Show IPA)
1.
a lip or liplike part.
2.
Anatomy.
  1. a lip or lip-shaped structure or part.
  2. any of the folds of skin bordering the vulva.
3.
Botany. the lower lip of a bilabiate corolla.
4.
Entomology. the posterior, unpaired member of the mouthparts of an insect, formed by the united second maxillae.
Origin
1590-1600; < Latin: lip, akin to lambere to lick, lap3. See labrum1, lip
Related forms
pseudolabium, noun, plural pseudolabia.
Examples from the web for labium
  • The mouth parts consist of a labrum, labium, and the paired mandibles and maxillae.
British Dictionary definitions for labium

labium

/ˈleɪbɪəm/
noun (pl) -bia (-bɪə)
1.
a lip or liplike structure
2.
any one of the four lip-shaped folds of the female vulva See labia majora, labia minora
3.
the fused pair of appendages forming the lower lip of insects
4.
the lower lip of the corolla of labiate flowers
Word Origin
C16: New Latin, from Latin: lip
Word Origin and History for labium
n.

1590s, plural labia, from Latin labium "lip" (see lip (n.)).

labium in Medicine

labium la·bi·um (lā'bē-əm)
n. pl la·bi·a (-bē-ə)

  1. A lip or lip-shaped anatomical structure.

  2. Any of four folds of tissue of the female external genitalia.

labium in Science
labium
  (lā'bē-əm)   
Plural labia
Either of two pairs of folds of tissue that make up part of the external genitalia of female mammals.