Search Result for "crotalus": 
Wordnet 3.0

NOUN (1)

1. large rattlesnakes; seldom bite unless startled or pursuing prey;
[syn: Crotalus, genus Crotalus]



The Collaborative International Dictionary of English v.0.48:

Crotalus \Crot"a*lus\ (-l?s), n. [NL., fr. Gr. ???? rattle.]
   (Zool.)
   A genus of poisonous serpents, including the rattlesnakes.
   [1913 Webster]


WordNet (r) 3.0 (2006):

Crotalus
    n 1: large rattlesnakes; seldom bite unless startled or pursuing
         prey [syn: Crotalus, genus Crotalus]