Source : Webster's Revised Unabridged Dictionary (1913)

Tortrix \Tor"trix\, n. [NL., fr. L. torquere, tortum, to twist.]
   1. (Zo["o]l.) Any one of numerous species of small moths of
      the family {Tortricid[ae]}, the larv[ae] of which usually
      roll up the leaves of plants on which they live; -- also
      called {leaf roller}.

   2. (Zo["o]l.) A genus of tropical short-tailed snakes, which
      are not venomous. One species ({Tortrix scytal}[ae]) is
      handsomely banded with black, and is sometimes worn alive
      by the natives of Brazil for a necklace.