posterior

名词 posterior:

1. the fleshy part of the human body that you sit on
   同义词：buttocks, nates, arse, butt, backside, bum, buns, can, fundament, hindquarters, hind end, keister, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass
2. a tooth situated at the back of the mouth
   同义词：back tooth

形容词 posterior:

1. at or near the hind end in quadrupeds or toward the spine in primates

1. The condition of being posterior in location or time.
   在后在位置上或时间上较靠后的状况
2. A fixture similar in design to a toilet that is straddled for bathing the genitals and the posterior parts.
   清洗盆一种在设计上像便池的固定装置，可叉开腿跨坐于上洗浴生殖器和臀部
3. Located or occurring posterior to the nose.
   鼻后的位于鼻后的，或发生于鼻后的
4. It is a posterior view of the skull.
   这是颅骨背视图。

pos.te.ri.or

adj.（形容词）
Located behind a part or toward the rear of a structure.
后部的，后面的：位于某部分之后的，在结构之尾部的
Relating to the caudal end of the body in quadrupeds or the dorsal side in human beings and other primates.
背后的，尾部的：与四足兽的身体尾部有关的，或与人类和其他灵长动物的背部有关的
Botany Next to or facing the main stem or axis.
【植物学】 近茎轴一侧的：紧挨着主茎或轴的，面向主茎或轴的
Coming after in order; following.
在后的，其次的：次序上较后的；相继的
Following in time; subsequent.
随后的，后来的：时间上较后的；随后的
n.（名词）
The buttocks.
屁股

来源：
Latin [comparative of] posterus [coming after]
拉丁语 [] posterus的比较级 [随后来的]
from post [afterward] * see apo-
源自 post [朝后] *参见 apo-

【引伸】
poste.riorly
adv.（副词）