Cop"per*head` (?), 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.
2.
A nickname applied to a person in the Northern States who sympathized with the South during the Civil War.
[U.S.]
© Webster 1913.