nounplural noun labia/ˈleɪbɪə/
A fused mouthpart which forms the floor of the mouth of an insect.‘Biplica, in addition, lacks the strongly tubercled and denticulate labium of Eriptycha.’
- ‘Insects close off the posterior of the mouth with a second ‘lip,’ the labium.’
- ‘Several groups developed active predatory larvae, still showing the spoon-shaped labium.’
The lower lip of the flower of a plant of the mint family.
Late 16th century (in the general sense ‘lip, liplike structure’): from Latin, ‘lip’; related to labrum.
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