noun (plural labia /-bēə/)
1 Entomology A fused mouthpart that forms the floor of the mouth of an insect.
More example sentences
- 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.
late 16th century (in the general sense 'lip, liplike structure'): from Latin, 'lip'; related to labrum.
Definition of labium in:
- The British & World English dictionary