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Webster's New World College Dictionary » premaxilla
premaxilla 
premaxilla definition
pre·max·illa (prē′mak sil′ə)
noun pl. premaxillae -·lae (-ē)
either of two bones in the upper jaw of vertebrates, situated between and in front of the maxillae, and fusing with them in the adult human being
Related Forms:
- premaxillary pre·max′·il·lar′y (-maks′i ler′ē) adjective
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