'Water adder' definitions:

Definition of 'Water adder'

From: GCIDE
  • Water adder \Wa"ter ad"der\ (Zool.) (a) The water moccasin. (b) The common, harmless American water snake (Tropidonotus sipedon). See Illust. under {Water Snake}. [1913 Webster]

Definition of 'water adder'

From: GCIDE
  • Water moccasin \Wa"ter moc"ca*sin\ (Zool.) A venomous North American snake (Ancistrodon piscivorus) allied to the rattlesnake but destitute of a rattle. It lives in or about pools and ponds, and feeds largely of fishes. Called also water snake, water adder, water viper. [1913 Webster]