- a poisonous North American pit viper (Agkistrodon contortrix) with a copper-colored head and dark-brown cross bands
- Informal a Northerner who sympathized with the South at the time of the Civil War: so called in the North
See copperhead in American Heritage Dictionary 4
- A venomous snake (Agkistrodon contortrix) of the eastern and central United States, having a reddish-brown body marked with darker crossbands arranged in an hourglass pattern.
- Copperhead A Northerner who sympathized with the South during the Civil War.
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