MANDIBLE
Etymology
Noun
mandible (plural mandibles)
The lower jaw, especially the lower jawbone.
One of a pair of mouthparts of an arthropod, designed for holding and cutting food.
Synonyms
• (lower jaw): dentary, dentary bone, inferior maxillary bone, jawbone, submaxilla
Source: Wiktionary
Man"di*ble, n. Etym: [L. mandibula, mandibulum, fr. mandere to chew.
Cf. Manger.]
1. (Anat.)
Definition: The bone, or principal bone, of the lower jaw; the inferior
maxilla; -- also applied to either the upper or the lower jaw in the
beak of birds.
2. (Zoöl.)
Definition: The anterior pair of mouth organs of insects, crustaceaus, and
related animals, whether adapted for biting or not. See Illust. of
Diptera.
Source: Webster’s Unabridged Dictionary 1913 Edition