posterior

noun

1. a tooth situated at the back of the mouth

Synonym: back tooth

2. the fleshy part of the human body that you sit on

e.g. he deserves a good kick in the butt
are you going to sit on your fanny and do nothing?

Synonym: buttocksnatesarsebuttbacksidebumbunscanfundamenthindquartershind endkeisterpratrearrear endrumpsternseattailtail endtooshietushbottombehindderrierefannyass

adj

1. coming at a subsequent time or stage

e.g. without ulterior argument
the mood posterior to

Synonym: later(a)ulterior

2. located at or near or behind a part or near the end of a structure

1. 臀部；屁股
Some-one's bottom can be referred to as their posterior .

2. 背部的；后部的
Posterior describes something that is situated at the back of something else.

e.g. ...the posterior leg muscles.
腿部后侧的肌肉

1.

1. [后]：现代解剖学对盆底结构描述日趋细致,腔室理论是代表,它的特点是:在垂直方向上将盆底分为前(anterior)、中(middle)、后(posterior)三个腔室(compartment),前腔室包括阴道前壁、膀胱、尿道;中腔室包括阴道顶部、子宫;后腔室包括阴道后壁、直肠;

2. 后部：轴向压力大部份为椎间盘所承受,且最大等效应力集中於椎间盘后部(posterior). 除了轴向位移外,亦产生偶合运动,即向后位移及后仰(extension). 作用力的中心线、椎体之几何中心,及脊椎之前弯角度(lordosis)与应力的分布、运动量有很大的关系.

3. 后面：改变的数量不多,且主要和方向性的辞汇有关:以后面 (posterior) 取代背面 (dorsal),以前面 (anterior) 取代腹面 (ventral) 等等. 在大部分的情况下,之前的辞汇会接在正式辞汇的后面,且以括弧表示;例如,posterior (dorsal) cochlear nucleus.

4. 后路：后路颈椎间孔切开术/椎间盘切除术是从颈椎后方对神经根施行减压的手术方法. 此术语源自后路(posterior)、颈椎(cervical)、椎间孔切开术(foraminotomy) 和椎间盘切除术(discectomy)这几个词.