noun any one of numerous species of small moths of the family tortricidae, the larvae of which usually roll up the leaves of plants on which they live;
also called leaf roller.
2. tortrix ·noun a genus of tropical short-tailed snakes, which are not venomous. one species (tortrix scytalae) is handsomely banded with black, and is sometimes worn alive by the natives of brazil for a necklace.