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English definition of “pupil”

pupil

noun [C] (EYE PART)    /ˈpjuː.pəl/
the circular black area in the centre of your eye, through which light enters: Pupils contract in bright light, and dilate in darkness.The eye and surrounding areaEyesight, glasses and lensesUsing the eyes
(Definition of pupil noun (EYE PART) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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