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瞳
どう
孔
こう
括
かつ
約
やく
筋
きん
Meanings
Noun
Anatomy
1. sphincter muscle of the pupil; sphincter pupillae
Kanji used
瞳
pupil (of eye)
孔
small hole
括
tie a loop around
約
promise
筋
muscle
Composed of
瞳
どう
孔
こう
pupil (of the eye)
括
かつ
約
やく
筋
きん
sphincter; sphincter muscle; constrictor