资料来源 : Webster's Revised Unabridged Dictionary (1913)

Water rattle \Wa"ter rat"tle\ Water rattler \Wa"ter rat"tler\
   (Zo["o]l.)
   The diamond rattlesnake ({Crotalus adamanteus}); -- so called
   from its preference for damp places near water.

资料来源 : WordNet®

Crotalus adamanteus
     n : large deadly rattlesnake with diamond-shaped markings [syn:
         {diamondback}, {diamondback rattlesnake}]