Look up: pupil

1. pupil
   [n] - contractile aperture in the iris of the eye
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Pupil
   the variable hole in the middle of the iris which admist light into the eye.
   Found on http://www.trayner.co.uk/Info/Glossary.h
   
   
3. Pupil
   the opening at the centre of the iris in the eye that constricts (contracts) and dilates (widens) in response to light
   Found on http://www.medichecks.com/glossary.cfm?l
   
   
4. pupil
   The circular part of the iris
   Found on http://www.generalandmedical.com/glossar
   
   
5. Pupil
   The dark circular aperture at the centre of the iris of the eye through which light passes.
   Found on http://www.gadsbywicks.co.uk/uploaded/38
   
   
6. 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, tha...
   Found on http://www.medterms.com/script/main/art.
   
   
7. pupil
   the aperture in the iris, normally circular and contractile, through which the image-forming light enters the eye Category: Medicine • the contractile,usually round aperture in the iris of the eye Category: Medicine • a variable aperture in the iris,through which the rays pro...
   Found on http://www.mijnwoordenboek.nl/definition
   
   
8. Pupil
   Pu'pil noun [ French pupille , noun fem., Latin pupilla the pupil of the eye, originally dim. of pupa a girl. See Puppet , and confer Pupil a scholar.] (Anat.) The aperture in the iris; the sight, apple, or bla...
   Found on http://www.encyclo.co.uk/webster/P/196
   
   
9. Pupil
   Pu'pil noun [ French pupille , noun masc. & fem., Latin pupillus , pupilla , dim. of pupus boy, pupa girl. See Puppet , and confer Pupil of the eye.] 1. A youth or scholar of either sex under t...
   Found on http://www.encyclo.co.uk/webster/P/196
   
   
10. pupil
    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. ... 3. A boy or a girl under the age of puberty, that is, under fou...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
11. pupil
    noun contractile aperture in the iris of the eye
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
12. pupil
    (P) (pu´pil) the opening in the center of the iris through which light enters the eye.
    Found on http://www.encyclo.co.uk/local/21001
    
    
13. Pupil
    • (n.) A boy or a girl under the age of puberty, that is, under fourteen if a male, and under twelve if a female. • (n.) A person under a guardian; a ward. • (n.) The aperture in the iris; the sight, apple, or black of the eye. See the Note under Eye, and Iris. • (n.) A youth or ...
    Found on http://thinkexist.com/dictionary/meaning
    
    
14. pupil
    in the anatomy of the eye, the opening within the iris through which light passes before reaching the lens and being focused onto the retina. The ... [6 related articles]
    Found on http://www.britannica.com/eb/a-z/p/133
    
    
15. pupil
    in optical systems, the virtual image of an aperture associated with mirrors, prisms, and lenses and their combinations. The shows the case of an ... [2 related articles]
    Found on http://www.britannica.com/eb/a-z/p/133
    
    
16. pupil
    pupil 1. The contractile aperture in the iris of the eye. 2. A learner who is enrolled in an educational institution. 3. A young person attending school (up through senior high school) who is learning under the close supervision of a teacher at school, a private tutor, or the like; a student. 4. ...
    Found on http://www.wordinfo.info/words/index/inf
    
    
17. pupil
    pupil: see eye.
    Found on http://www.infoplease.com/ce6/sci/A09178
    
    
18. Pupil
    The pupil can be seen in the center of the iris of the eye where it appears to be black in colour. Around the pupil is a sphincter muscle that contracts according to the light conditions. If the eye is exposed to strong light, the pupil contracts, protecting the nerve cells at the back of the eye. I...
    Found on http://www.probertencyclopaedia.com/brow
    
    
19. pupil
    (p) Type: Term Pronunciation: pyū′pĭl Definitions: 1. The circular orifice in the center of the iris, through which the light rays enter the eye. Synonyms: pupilla
    Found on http://www.medilexicon.com/medicaldictio
    
    
20. Pupil
    The black, circular opening in the center of the iris, which is the colored portion of the eye.
    Found on http://www.trottersopticians.co.uk/eyeca
    
    
21. PUPIL
    The central opening of the iris, through which light penetrates into the inner reaches of the eye.
    Found on http://www.thehorse.com/Glossary.xhtml?L
    
    
22. pupil
    Latin pupilla = the central black orifice in the iris; adjective - pupillary.
    Found on http://www.anatomy.usyd.edu.au/glossary/
    
    
23. PUPIL
    The aperture within the iris.
    Found on http://eyediologyopticians.co.uk/pages/E
    
    
24. pupil
    The opening through the iris that permits light to enter the posterior cavity of the eyeball and be refracted by the lens through the vitreous chamber.
    Found on http://www.mhhe.com/biosci/abio/glossary
    
    
25. pupil
    The opening through the iris that permits light to enter the posterior cavity of the eyeball and be refracted by the lens through the vitreous chamber.
    Found on http://www.mhhe.com/biosci/abio/glossary