ˈmandəbəl, -aan- noun
( -s )
Etymology: Middle French, from Late Latin mandibula, from Latin mandere to chew — more at mouth
1.
a. : jaw 1a ; especially : a lower jaw consisting of a single bone or completely fused bones
b. : the lower jaw with its investing soft parts — see fish illustration
c. : either the upper or lower segment of the bill of a bird
2. : any of various invertebrate mouthparts serving to hold or bite into food materials: as
a. : either member of the anterior part of mouth appendages of an arthropod often forming strong biting jaws
b. : one of the paired corneous or calcified cutting plates on the proboscis of certain polychaete worms