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Posterior

释义 Definition

posterior adj./n.

（位置）后面的；后方的（与 anterior “前面的”相对）
（解剖）后部的（如身体某结构的后侧）
（口语/委婉）臀部的；臀部（作名词时尤指“屁股”）
注：在统计学/机器学习中也常见 posterior n. 指“后验（概率/分布）”。*

发音 Pronunciation (IPA)

/pstirir/（美）
/pstri/（英）

例句 Examples

The kidneys are posterior to the stomach.
肾脏位于胃的后方。

In the MRI scan, the lesion appears in the posterior region of the brain, which may explain the patient’s balance problems.
在核磁共振扫描中，病灶出现在大脑后部区域，这可能解释患者的平衡障碍。

词源 Etymology

来自拉丁语 posterior，意为“更后面的、在后面的”，是 posterus（后面的）的比较级形式；词根与“在后、之后”的空间/时间概念相关。后来在解剖学中固定用来指“后侧/后部”，并在口语中引申为“臀部”。

相关词 Related Words

文学与著名作品 Literary Works

Gray’s Anatomy（《格雷氏解剖学》）
Netter’s Atlas of Human Anatomy（《奈特人体解剖图谱》）
Clinical Anatomy by Regions（《分区临床解剖学》）

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