Definition of copperhead
1 : a common pit viper (Agkistrodon contortrix) of the eastern and central U.S. usually having a copper-colored head and often a reddish-brown hourglass pattern on the body
2 : a person in the northern states who sympathized with the South during the American Civil War
COPPERHEAD Defined for English Language Learners
Definition of copperhead for English Language Learners
: a poisonous reddish-brown snake of the eastern and central U.S.
COPPERHEAD Defined for Kids
Definition of copperhead for Students
: a poisonous snake of the eastern and central United States with a reddish brown head
Medical Definition of copperhead
1: a pit viper (Agkistrodon contortrix) widely distributed in upland areas of the eastern and central United States that typically attains a length of three feet (0.9 meter), is coppery brown above with dark transverse blotches, and is capable of inflicting a very painful but rarely fatal bite
2: a very venomous but sluggish Australian elapid snake of the genus Denisonia (D. superba)
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