Mandible n. : 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.

Mandible n. : The anterior pair of mouth organs of insects, crustaceaus, and related animals, whether adapted for biting or not. See Illust. of Diptera.

Example:
How is the Mandible Claw actually applied and how does it work?

Taxonomy
mandible, bones, lower jaw, temporal bones, dentary, body, nerve, teeth, primitive, vertebrates, articulation, Side view, mental foramen, free encyclopedia, body of mandible, Coronoid process, skull, Mandibular foramen.

Defination from the web:
mandible, superior to the mandibular angle in the middle of the ramus. ... The incisive nerve runs forward in the mandible and supplies the anterior teeth. The mental nerve exits the mental foramen and supplies sensation ...