mandible

man·di·ble

noun \ˈman-də-bəl\

Definition of MANDIBLE

1

a : jaw 1; especially : jaw 1b b : the lower jaw with its investing soft parts

2

: any of various invertebrate mouthparts serving to hold or bite food materials; especially : either member of the anterior pair of mouth appendages of an arthropod often forming strong biting jaws

Illustration of MANDIBLE