'Metathorax' definitions:

Definition of 'Metathorax'

From: GCIDE

Metathorax \Met`a*tho"rax\, n. [NL.: cf. F. m['e]tathorax. See Meta-, and Thorax.] (Zool.) The last or posterior segment of the thorax in insects. See Illust. of Coleoptera. [1913 Webster]