1. (

• Bighorn ,
• Bighorn_River

) a river that flows from central Wyoming to the Yellowstone River in southern Montana ;

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 ;