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pupil

pupil

82 3.4
A round dark opening in the center of the eye that controls how much light enters
  • noun
  • /ˈpjuːpəl/
translation icon : pupila
  • When exposed to bright sunlight, your pupil constricts to reduce the amount of light entering.
  • pupil of the eye
  • dilated pupils

When we are relaxed, our pupils tend to constrict.

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Examples

Surface Forms

pupil singular
pupils plural

Etymology

Pupil for the dark round part of the eye comes from the Latin pupilla, meaning 'little doll', because people saw a tiny reflection of themselves in the eye like a small doll. So the name stuck for the small opening that lets light into the eye.