labium

Definitions

1. A liplike structure; especially one of the vulva's two pairs of folds of skin on either side.
   plural-normally
2. The lip of a labiate corolla.
3. A lower mouthpart of an insect that is formed by the second pair of maxillae united in the middle line.
4. A liplike part of various invertebrates.
5. The lip against which pressured air is driven to produce sound in a recorder and in a pipe organ with flue pipes.

Equivalents

CEFR level