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pupil2


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Definition of pupil

noun

  • the dark circular opening in the centre of the iris of the eye, which varies in size to regulate the amount of light reaching the retina.

Derivatives

pupillary

adjective

Origin:

late Middle English: from Old French pupille or Latin pupilla, diminutive of pupa 'doll' (so named from the tiny reflected images visible in the eye)

pupil in other Oxford dictionaries

Definition of pupil in the US English dictionary