| n. | 1. | (Zool.) A poisonous American serpent (Ancistrodon conotortrix), closely allied to the rattlesnake, but without rattles; - called also |
| 2. | A nickname applied to a person in the Northern States who sympathized with the South during the Civil War. |
| Noun | 1. | copperhead - common coppery brown pit viper of upland eastern United States Synonyms: Agkistrodon contortrix |
| 2. | copperhead - venomous but sluggish reddish-brown snake of Australia Synonyms: Denisonia superba |