Last Updated：2025/11/20

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(anatomy) The hole in the middle of the iris of the eye, through which light passes to be focused on the retina. / (zoology) The central dark part of an ocellated spot.

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pupil

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Source Word

pupil

IPA(Pronunciation)

/ˈpjuːpəl/

Noun

(anatomy) The hole in the middle of the iris of the eye, through which light passes to be focused on the retina. / (zoology) The central dark part of an ocellated spot.

Japanese Meaning

解剖学的意味：虹彩の中央にある穴、光が通り網膜上で焦点を合わせる役割を持つ部分。 / 動物学的意味：斑点状の模様の中央に位置する、濃い色の部分。

What is this buttons?

The doctor examined the patient's pupil to check its reaction to light.

Google Translation / DeepL Translation

医師は光に対する反応を確かめるために患者の瞳孔を調べた。

Details

Sense（1）

There are sharks with round pupils, sharks with slitlike pupils, and some with pupils that expand and contract with the amount of light available. As unimpressive as this might sound to people who are used to having their pupils dilate and contract regularly, realize that no bony fish has this modification of the eye.

Google Translation / DeepL Translation

Details

Sense（2）

(zoology) The central dark part of an ocellated spot.

pupils

（ plural ）

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pupil

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