noun The jaw or a jawbone, especially the lower jawbone in mammals and fishes.
noun The jaw or a jawbone, especially the lower jawbone in mammals and fishes.
noun Either of the upper and lower segments of a bird's beak.
noun Any of various invertebrate mouthparts serving to hold or bite food materials. One of the anterior pair of mouthparts of an arthropod, designed for holding and cutting food.
noun One of the anterior pair of mouthparts of an arthropod, designed for holding and cutting food.