noun
sirloin (beef); saddle (mutton/lamb)
Culinary term for a specific cut of meat: the sirloin of beef, or the saddle of mutton or lamb. The word literally means 'under the saddle', referring to the part of the animal beneath the saddle.
鞍下は牛肉の中でも特に柔らかい部位です。
The sirloin is a particularly tender cut of beef.
ラムの鞍下をローストして夕食に出した。
I roasted a saddle of lamb and served it for dinner.