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maxilla

play
noun max·il·la \mak-ˈsi-lə\

Definition of maxilla

plural max·il·lae play \-ˈsi-(ˌ)lē, -ˌlī\ or maxillas

  1. 1 a :  jaw 1a b (1) :  an upper jaw especially of humans and other mammals in which the bony elements are closely fused (2) :  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

  2. 2 :  one of the first or second pair of mouthparts posterior to the mandibles in many arthropods (as insects or crustaceans)

max·il·lary play \ˈmak-sə-ˌler-ē, chiefly British mak-ˈsi-lə-rē\ adjective or noun


Origin of maxilla

Latin, diminutive of mala jaw


First Known Use: 1676


Medical Dictionary

maxilla

play
noun max·il·la \mak-ˈsil-ə\

Medical Definition of maxilla

plural max·il·lae \-ˈsil-(ˌ)ē, -ˌī\play play or maxillas

  1. 1:  jaw 1a

  2. 2a:  an upper jaw especially of humans or other mammals in which the bony elements are closely fusedb:  either of two membrane bone elements of the upper jaw that lie lateral to the premaxillae and that in higher vertebrates including humans bear most of the teeth

  3. 3:  one of the first or second pair of mouthparts posterior to the mandibles in insects, myriopods, crustaceans and closely related arthropods



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