The Collaborative International Dictionary
Tropidonotus sipedon
Water adder \Wa"ter ad"der\ (Zo["o]l.)
The water moccasin.
The common, harmless American water snake ( Tropidonotus sipedon). See Illust. under Water Snake.
Tropidonotus sipedon
Water snake \Wa"ter snake`\ (Zo["o]l.)
A common North American colubrine snake ( Tropidonotus sipedon) which lives chiefly in the water.
Any species of snakes of the family Homalopsid[ae], all of which are aquatic in their habits.