maxilla
max.il.la also max.il.lar \mak-'sil-*\ \-'sil-(.)e-, -.i-\
\'mak-s*-.ler-e-, chiefly Brit mak-'sil-*-re-\ \'mak-s*-l*r, mak-'sil-*r\ n
or max.il.lae or maxillas [L, dim. of mala jaw] pl 1a: JAW 1b1: an upper
jaw esp. of man or other mammals in which the bony elements a re closely
fused 1b2: either of two membrane bone elements of the upper jaw lying
lateral to the premaxillae and in higher vertebrates and man bearing most
of the teeth 2: one of the first or second pair of mouthparts posterior to
the mandibles in insects, myriopods, crustaceans, and closely related
arthropods - max.il.lary aj