| any of several mildly venomous colubrid snakes of the genus Trimorphodon, inhabiting rocky areas from the southwestern U.S. to Central America, having fangs in the rear of the upper jaw and a lyre-shaped marking on the head. |
| lyre snake | |
noun | |
| mildly venomous snake with a lyre-shaped mark on the head; found in rocky areas from southwestern United States to Central America |