- a jaw or jawbone, especially the upper.
- one of the paired appendages immediately behind the mandibles of arthropods.
Origin of maxilla
Examples from the Web for maxilla
Maxillary palpi: the first pair of palpi, borne on the maxilla.Explanation of Terms Used in Entomology
John. B. Smith
Now these three lobes may be easily distinguished in the maxilla of Lepisma.Our Common Insects
Alpheus Spring Packard
It is wholly confined to the maxilla, not extending on to the nasals.
Behind this the edge of the maxilla is only slightly convex.
There is no operculum and no representative of the maxilla or premaxillae.The Vertebrate Skeleton
Sidney H. Reynolds
- the upper jawbone in vertebratesSee jaw (def. 1)
- any member of one or two pairs of mouthparts in insects and other arthropods used as accessory jaws
Word Origin and History for maxilla
"jaw, jawbone," 1670s, from Latin maxilla "upper jaw," diminutive of mala "jaw, cheekbone." "Maxilla stands to mala as axilla, 'armpit,' stands to ala 'wing'" [Klein]. Related: Maxillar; maxilliform.
- Either of a pair of irregularly shaped bones of the skull, fusing in the midline, supporting the upper teeth, and forming part of the eye sockets, hard palate, and nasal cavity; upper jaw.
- The upper part of the jaw in vertebrate animals.