Noun bighorn has 2 senses
  1. Bighorn, Bighorn River - a river that flows from central Wyoming to the Yellowstone River in southern Montana
    --1 is a kind of river
    --1 is a part of
     Wyoming, Equality State, WY; Montana, Treasure State, MT
  2. bighorn, bighorn sheep, cimarron, Rocky Mountain bighorn, Rocky Mountain sheep, Ovis canadensis - wild sheep of mountainous regions of western North America having massive curled horns
    --2 is a kind of mountain sheep
    --2 is a member of Ovis, genus Ovis
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