Medical Definition of maxilla
1: jaw 1a
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: one of the first or second pair of mouthparts posterior to the mandibles in insects, myriopods, crustaceans and closely related arthropods
Seen and Heard
What made you want to look up maxilla? Please tell us where you read or heard it (including the quote, if possible).