Akademik

mandible
n.
1 the jaw, esp. the lower jaw in mammals and fishes.
2 the upper or lower part of a bird's beak.
3 either half of the crushing organ in an arthropod's mouth-parts.
Derivatives:
mandibular adj. mandibulate adj.
Etymology: ME f. OF mandible or LL mandibula f. mandere chew

Useful english dictionary. 2012.