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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 of your eye, the black hole in your iris, works with the lens to send light to the retina, where it becomes electrical signals sent on to the brain through the optic nerve
  • 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 Function and Disorders That Affect It - Verywell Health
    The pupil is the opening located in the center of the iris of the eye It controls the amount of light that enters the eye so that you can see clearly The pupil size is controlled by muscles of the iris that narrow and widen the opening
  • 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
  • PUPIL Definition Meaning - Merriam-Webster
    : the usually round opening in the iris that contracts and expands to control the amount of light entering the eye
  • PUPIL | English meaning - Cambridge Dictionary
    PUPIL definition: 1 a person, especially a child at school, who is being taught: 2 someone who is being taught a… Learn more
  • Pupil | Complete Anatomy - Elsevier
    The pupil is the central aperture or opening of the iris of the eye It allows light to enter the eyeball, be focused by the lens, and eventually impinge on the retina
  • 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





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