labrum

Meaning

1. The uppermost of the mouthparts (trophi) of a typical insect, such as a cockroach. Typically resembles an upper lip and forms part of the roof of the mouth in such insects.
2. Any of several lip-like projections.
3. A large basin of warm water, with an overhanging lip, in a Roman bath.

Synonyms

lip

Etymology

From Latin labrum (“lip”).