'Trionychina' definitions:

Definition of 'Trionychina'

From: GCIDE

Trionychoidea \Tri*on`y*choi"de*a\, n. pl. [NL. See Trionyx, and -old.] (Zool.) A division of chelonians which comprises Trionyx and allied genera; -- called also Trionychoides, and Trionychina. [1913 Webster]