There are 2 definitions of pupil in English:

pupil1

Syllabification: pu·pil
Pronunciation: /ˈpyo͞opəl
 
/

noun

Origin

late Middle English (in the sense 'orphan, ward'): from Old French pupille, from Latin pupillus (diminutive of pupus 'boy') and pupilla (diminutive of pupa 'girl').

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Pronunciation: ˈmālˌsträm
noun
a powerful whirlpool in the sea

There are 2 definitions of pupil in English:

pupil2

Syllabification: pu·pil
Pronunciation: /
 
ˈpyo͞opəl/

noun

  • The dark circular opening in the center of the iris of the eye, varying in size to regulate the amount of light reaching the retina.
    More example sentences
    • Muscles controlling the iris change the size of the pupil according to light conditions.
    • The pupils do not change size when a bright light is projected into them.
    • It varies the size of the pupil and the thickness of the lens of the eyes to adjust for brightness and for distance.

Derivatives

pupillary

Pronunciation: /ˈpyo͞opəˌlerē/
(also pupilary) adjective
More example sentences
  • The cornea, the pupillary opening within the iris, the lens, and the aqueous and vitreous humor combine to form the refractive media of the eye.
  • A stimulant action on the parasympathetic portion of the oculomotor nucleus (third cranial nerve) is responsible for pupillary miosis.
  • She had pendular nystagmus, but pupillary and fundus examination showed nothing abnormal.

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).

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