maxilla
/mækˈsɪl.ə/ noun
Forms maxillae maxillas maxillæ
- noun An upper jaw especially of humans and other mammals in which the bony elements are closely fused.
- noun (anatomy) 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.
- noun (zootomy) One of the first or second pair of mouthparts posterior to the mandibles in many arthropods that are used for tasting and manipulating food.
Synonyms
jawbone maxillary bone endite upper jaw upper jawbone maxillary
Etymology
From Middle English, from Latin māxilla (“the jawbone, jaw”), diminutive of māla (“the cheekbone, jaw”).
Webster’s 1913
- noun (a) The bone of either the upper or the under jaw. (b) The bone, or principal bone, of the upper jaw, the bone of the lower jaw being the mandible. [Now commonly used in this restricted sense.]
- noun One of the lower or outer jaws of arthropods.
Etymology [L., dim. of mala jaw, jawbone.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “maxilla”, CC BY-SA 4.0. Details