Copperhead

02319 Cop"per*head` (?), n. [From its color.] 1. (Zo\'94l.) A poisonous American serpent (Ancistrodon conotortrix), closely allied to the rattlesnake, but without rattles; -- called also altname copper-belly /altname , and altname red viper /altname .2. A nickname applied to a person in the Northern States who sympathized with the South during the Civil War. mark [U.S.]