noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A paired central muscle of the lower lip, situated at the tip of the chin; it originates in the incisive fossa of the mandible, inserts in the skin of the chin, and raises the chin and pushes up the lower lip.

Synonyms

All synonyms

bicepsmusclevoluntary muscle

Etymology

Learned borrowing from New Latin mentālis, ellipsis of musculus mentālis (“the chin muscle”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.