V2EX impaction

Impaction

定义 Definition

impaction(名词)指“嵌塞;阻塞;卡住”,常用于医学语境:

  • (牙科)阻生/阻生嵌塞:牙齿(尤其智齿)因空间不足而无法正常萌出。
  • (消化科)粪便嵌塞:粪块在肠道内堆积造成堵塞。
    也可泛指物体被压紧、挤入而形成的“紧密塞住”状态。

发音 Pronunciation

/mpkn/

词源 Etymology

来自拉丁语词根 **pangere/pact-**(意为“固定、钉住、使牢固”),经由英语动词 impact(“撞击;使紧压/嵌入”)发展出名词 impaction,表示“被压入并卡住/形成堵塞的状态或过程”。该词在现代英语中尤其固定在医学与牙科搭配里使用。

例句 Examples

The dentist said I have an impacted tooth.
牙医说我有一颗阻生牙(嵌塞牙)。

After several days without a bowel movement, the doctor suspected fecal impaction and ordered imaging.
几天没有排便后,医生怀疑是粪便嵌塞,并安排了影像检查。

相关词 Related Words

文学与作品用例 Literary Works

  • Gray’s Anatomy(《格雷氏解剖学》):在解剖与临床相关章节中常见 impaction(如肠道内容物嵌塞、相关并发症等)的描述。
  • Harrison’s Principles of Internal Medicine(《哈里森内科学》):讨论便秘、肠梗阻等问题时会涉及 fecal impaction(粪便嵌塞)。
  • Oxford Handbook of Clinical Medicine(《牛津临床医学手册》):在急诊/消化系统症状鉴别与处理部分,可能出现 impaction 的临床用法。
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