labium
/ˈleɪ.bi.əm/noun
Middle School
1
A liplike structure; especially one of the vulva's two pairs of folds of skin on either side.
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.