名詞 buttocks:

1. the fleshy part of the human body that you sit on
   同義詞：nates, arse, butt, backside, bum, buns, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass

名詞 buttock:

1. either of the two large fleshy masses of muscular tissue that form the human rump
   同義詞：buttock, cheek

1. Armor consisting of overlapping plates used to protect the buttocks.
   護(hù)臀甲由相互交迭的甲片構(gòu)成的鎧甲，用來保護(hù)臀部
2. The bared buttocks.
   赤裸的臀部
3. A fatty deposit causing a dimpled or uneven appearance, as around the thighs and buttocks.
   脂肪團(tuán)一種能引起如大腿、臀部等處的皺紋或凹凸不平的脂肪沉淀物