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pupil    音标拼音: [pj'upəl]
n. 学生,门生,未成年人,瞳孔

学生,门生,未成年人,瞳孔

pupil
n 1: a learner who is enrolled in an educational institution
[synonym: {student}, {pupil}, {educatee}]
2: the contractile aperture in the center of the iris of the
eye; resembles a large black dot
3: a young person attending school (up through senior high
school) [synonym: {schoolchild}, {school-age child}, {pupil}]

Pupil \Pu"pil\, n. [F. pupille, n. fem., L. pupilla the pupil of
the eye, originally dim. of pupa a girl. See {Puppet}, and
cf. {Pupil} a scholar.] (Anat.)
The aperture in the iris; the sight, apple, or black of the
eye. See the Note under {Eye}, and {Iris}.
[1913 Webster]

{Pin-hole pupil} (Med.), the pupil of the eye when so
contracted (as it sometimes is in typhus, or opium
poisoning) as to resemble a pin hole. --Dunglison.
[1913 Webster]


Pupil \Pu"pil\, n. [F. pupille, n. masc. & fem., L. pupillus,
pupilla, dim. of pupus boy, pupa girl. See {Puppet}, and cf.
{Pupil} of the eye.]
1. A youth or scholar of either sex under the care of an
instructor or tutor.
[1913 Webster]

Too far in years to be a pupil now. --Shak.
[1913 Webster]

Tutors should behave reverently before their pupils.
--L'Estrange.
[1913 Webster]

2. A person under a guardian; a ward. --Dryden.
[1913 Webster]

3. (Civil Law) A boy or a girl under the age of puberty, that
is, under fourteen if a male, and under twelve if a
female.
[1913 Webster]

Syn: Learner; disciple; tyro. -- See {Scholar}.
[1913 Webster]

49 Moby Thesaurus words for "pupil":
apprentice, auditor, autodidact, baby blues, banjo eyes, beginner,
bright eyes, catechumen, clear eyes, cornea, disciple, educatee,
eye, eyeball, eyelid, goggle eyes, inquirer, iris, learner, lens,
lid, monitor, naked eye, neophyte, nictitating membrane, novice,
oculus, optic, optic nerve, orb, organ of vision, peeper, popeyes,
praepostor, prefect, retina, saucer eyes, scholar, schoolboy,
schoolgirl, sclera, self-taught person, starry orbs, student,
studier, trainee, tyro, unaided eye, visual organ

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  • Pupil of the Eye: Definition, Anatomy Function - Cleveland Clinic
    The pupil is the black hole in the center of the colored part of your eye (iris) The pupil is the pathway that lets light get to your retina
  • PUPIL Definition Meaning - Merriam-Webster
    The meaning of PUPIL is a child or young person in school or in the charge of a tutor or instructor : student
  • Pupil - Wikipedia
    In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop The image of the pupil as seen from outside the eye is the entrance pupil, which does not exactly correspond to the location and size of the physical pupil because it is magnified by the cornea
  • PUPIL | English meaning - Cambridge Dictionary
    pupil noun [C] (EYE PART) the circular, black area in the center of the eye that gets larger and smaller and lets in light (Definition of pupil from the Cambridge Academic Content Dictionary © Cambridge University Press)
  • Pupil Function and Disorders That Affect It - Verywell Health
    A pupil is the opening created by the iris, which controls the amount of light that enters the eye Learn about medical conditions affecting the pupils
  • PUPIL Definition Meaning | Dictionary. com
    A pupil is a person who is learning under a teacher or instructor In this sense, pupil is often used when the student is young but does not strictly apply to young people
  • Human eye - Pupil, Iris, Retina | Britannica
    The amount of light entering the eye is restricted by the aperture in the iris, the pupil In a dark room, a person’s pupils are large, perhaps 8 mm (0 3 inch) or more in diameter When the room is lighted, there is an immediate constriction of the pupils, the light reflex
  • Pupil | Iris, Optic Nerve Retina | Britannica
    Pupil, in the anatomy of the eye, the black centre opening within the iris through which light passes before reaching the lens and being focused onto the retina
  • Diseases of the Pupil: Causes, Signs Systemic Insights
    The pupil, the dark circular opening in the center of the iris, plays a vital role in regulating the amount of light that enters the eye Its size and reaction to light provide critical information not only about ocular health but also about neurological and systemic well-being





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