Pupil : (noun)
1: a learner who is enrolled in an educational institution
[syn: student, educatee]
2: contractile aperture in the iris of the eye
3: a young person attending school (up through senior high
school) [syn: schoolchild, school-age child]
Based on WordNet 2.0
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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.
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.
Based on Webster's Revised Unabridged Dictionary
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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.
Too far in years to be a pupil now. --Shak.
Tutors should behave reverently before their pupils.
--L'Estrange.
2. A person under a guardian; a ward. --Dryden.
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.
Syn: Learner; disciple; tyro. -- See Scholar.
Based on Webster's Revised Unabridged Dictionary
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PUPIL, civil law. One who is in his or her minority. Vide. Dig. 1, 7; Id.
26, 7, 1, 2; Code, 6, 30, 18; Dig. 50, 16, 239. One who is in ward or
guardianship.
Based on Bouvier's Law Dictionary, Revised 6th Ed (1856) [Bouvier_Law_Dictionary]:
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Pupil : Pupil: The opening of the iris. The pupil may appear to open (dilate) and close (constrict) but it is really the iris that is the prime mover; the pupil is merely the absence of iris. The
pupil determines how much light is let into the eye. Both pupils are usually of equal size. If they are not, that is termed anisocoria (from "a-", not _ "iso", equal _ "kore", pupil = not equal
pupils).
Aside from the pupil and iris, the eye has a number of other components. These components include the cornea, lens, retina, macula, optic nerve and vitreous.
The cornea is the clear front window of the eye that transmits and focuses light into the eye.
The lens is the transparent structure inside the eye that focuses light rays onto the retina.
The retina is the nerve layer that lines the back of the eye, senses light and creates impulses that travel through the optic nerve to the brain.
The macula is a small area in the retina that contains special light-sensitive cells and allows us to see fine details clearly.
The optic nerve is the nerve that connects the eye to the brain and carries the impulses formed by the retina to the visual cortex of the brain.
The vitreous humor is a clear, jelly-like substance that fills the middle of the eye.
Based on Bouvier's Law Dictionary, Revised 6th Ed (1856) [Bouvier_Law_Dictionary]:
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