n. [ From its color. ] 1. (Zool.) A poisonous American serpent (Ancistrodon conotortrix), closely allied to the rattlesnake, but without rattles; -- called also copper-belly, and red viper. [ 1913 Webster ]
2. A nickname applied to a person in the Northern States who sympathized with the South during the Civil War. [ U.S. ] [ 1913 Webster ]