noun
ram; male sheep
Refers specifically to a male sheep. The female counterpart is 牝羊 (めひつじ).
牧場に大きな牡羊がいる。
There is a big ram on the farm.
牡羊の角は立派だ。
The ram's horns are magnificent.
Compound of 牡 (お, 'male') + 羊 (ひつじ, 'sheep'). The reading お is the native Japanese prefix for male animals, and ひつじ is the native word for sheep.