Entry 1 sense Webster, 1913

Bighorn

/bĭg'-hôrnˌ/ · Big·horn · IPA /bˈɪɡhˌɔrn/

01 n. The Rocky Mountain sheep (Ovis montana [or] Caprovis montana); called also bighorn sheep.

1.
The Rocky Mountain sheep (Ovis montana [or] Caprovis montana); called also bighorn sheep.(Zool.) Also: bighorn sheep