Either of the two bones that lie with one on each side of the upper jaw lateral to the premaxilla and that in higher vertebrates bear most of the teeth.
An upper jaw especially of humans and other mammals in which the bony elements are closely fused.
One of the first or second pair of mouthparts posterior to the mandibles in many arthropods that are used for tasting and manipulating food.
The part of the alimentary canal immediately behind the mouth in invertebrates that may be thickened and muscular, eversible and toothed, or adapted as a suctorial organ.
The part of the alimentary canal and respiratory tract that extends from the back of the mouth and nasal cavity to the larynx and esophagus.