The Collaborative International Dictionary of English v.0.48:
Anguine \An"guine\, a. [L. anguinus, fr. anguis snake.] Of, pertaining to, or resembling, a snake or serpent. "The anguine or snakelike reptiles." --Owen. [1913 Webster]WordNet (r) 3.0 (2006):
anguine adj 1: of or related to or resembling a snake