from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A semiaquatic pit viper (Agkistrodon piscivorus) of lowlands and swampy regions of the southern United States. Also called cottonmouth.
- n. Any of various similar but harmless water snakes.
from the GNU version of the Collaborative International Dictionary of English
- 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.
from The Century Dictionary and Cyclopedia
- n. A water-adder: a name applied with little discrimination in the United States to several species of aquatic snakes; properly, the venomous Toxicophis or Ancistrodon piscivorus, with which the harmless Tropidonotus (or Nerodia) sipedon is sometimes confounded. See water-snake, and cut under moccasin.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of numerous North American water snakes inhabiting fresh waters
- n. venomous semiaquatic snake of swamps in southern United States
Sorry, no etymologies found.