洛磯山羊
Bighorn \Big"horn`\, n. (Zo["o]l.) The Rocky Mountain sheep ({Ovis or Caprovis montana}).
Bighorn n 1: a river that flows from central Wyoming to the Yellowstone River in southern Montana [syn: {Bighorn River}] 2: wild sheep of mountainous regions of western North America having massive curled horns [syn: {bighorn sheep}, {cimarron}, {Rocky Mountain bighorn}, {Rocky Mountain sheep}, {Ovis canadensis}]