Noun copperhead has 2 senses
  1. copperhead, Agkistrodon contortrix - common coppery brown pit viper of upland eastern United States
    --1 is a kind of pit viper
    --1 is a member of
     Agkistrodon, genus Agkistrodon, Ancistrodon, genus Ancistrodon
  2. copperhead, Denisonia superba - venomous but sluggish reddish-brown snake of Australia
    --2 is a kind of elapid, elapid snake
    --2 is a member of Denisonia, genus Denisonia
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