Definition of labium in English:
noun (plural labia /-bɪə/)
1 Entomology 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.
Definition of labium in:
- US English dictionary