maxilla
Concise Oxford English Dictionary © 2008 Oxford University Press:
maxilla /makˈsɪlə/
▶noun (pl. maxillae /-liː/) Anatomy & Zoology the jaw or jawbone, specifically the upper jaw in most vertebrates.
■ (in many arthropods) each of a pair of mouthparts used in chewing.
– derivatives
maxillary adjective.
maxillary adjective.
– origin ME: from L., ‘jaw’.
'maxilla' also found in these Oxford entries:

