柯林斯詞典posterior /p??st??r??/ (posteriors) 1. N-COUNT Someone's buttocks can be referred to as their posterior. 后臀[幽默] 2. ADJ Posterior describes something that is situated at the back of something else. 背后的; 后部的[醫(yī)學(xué)] [ADJ n] ...the posterior leg muscles. ...該腿部后側(cè)肌肉。 返回 posterior劍橋詞典anatomy specialized positioned at or towards the back 后部的；尾部的 formal later in time （時(shí)間上）稍后的 比較anterior (1) 返回 posterior