虫垂

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See also: 蟲垂

Japanese

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虫垂 (chūsui): an illustration from Gray's Anatomy, showing the appendix as the worm-shaped portion at lower right, labeled “vermiform process”.
Kanji in this term
ちゅう
Grade: 1
すい
Grade: 6
kan'on
Alternative spelling
蟲垂 (kyūjitai)

Etymology

Appears to be a coinage in Japanese as a compound of (chū, worm) +‎ (sui, appendix (anatomy)), replacing earlier 虫様突起 (chūyō tokki, vermiform process).[1]

It seems that the 突起 (tokki, protrusion; protuberance; process) portion in the older term was first replaced with (sui, dangling; hanging (from something); appendix) as 虫様垂 (chūyō sui, literally worm-shaped danglingvermiform appendix), which in turn was shortened to modern 虫垂 (chūsui).

Compare Dutch wormvormig aanhangsel, English vermiform appendix.

Pronunciation

Noun

(ちゅう)(すい) (chūsui

  1. (anatomy) an appendix, a vermiform appendix
    Synonyms: (rare) 虫様垂 (chūyō sui), (dated) 虫様突起 (chūyō tokki), (informal) 盲腸 (mōchō)

Usage notes

In informal usage, the term 盲腸 (mōchō) is more common. In medical contexts, 虫垂 (chūsui) is preferred, as 盲腸 (mōchō) refers more specifically to the caecum instead of the appendix.

Derived terms

References

  1. 1.0 1.1 Kindaichi, Kyōsuke et al., editors (1997), 新明解国語辞典 [Shin Meikai Kokugo Jiten] (in Japanese), Fifth edition, Tokyo: Sanseidō, →ISBN
  2. ^ Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN
  3. ^ NHK Broadcasting Culture Research Institute, editor (1998), NHK日本語発音アクセント辞典 [NHK Japanese Pronunciation Accent Dictionary] (in Japanese), Tokyo: NHK Publishing, Inc., →ISBN