[ 'leɪbɪəm ]
■ noun ( plural labia -bɪə )
1》 Entomology a fused mouthpart forming the floor of the mouth of an insect.
2》 Botany the lower lip of the flower of a labiate plant.
3》 ( labia ) Anatomy the labia majora or minora.
Origin
C16: from L., 'lip'; related to labrum .