noun
pommel horse; side horse
Gymnastics apparatus; also refers to the event itself.
彼は鞍馬の演技で金メダルを取った。
He won the gold medal in the pommel horse event.
noun
saddled horse
A horse fitted with a saddle; less common than the gymnastics sense.
鞍馬にまたがって旅に出る。
Set out on a journey astride a saddled horse.
Compound of 鞍 (saddle) and 馬 (horse).