anguine

from WordNet (r) 3.0 (2006)

anguine
    adj 1: of or related to or resembling a snake

from 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]