pupil
pu·pil1 / ˈpyoōpəl/ • n. a student in school.pu·pil2 • n. 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.DERIVATIVES: pu·pil·lar·y / ˈpyoōpəˌlerē/ (also pu·pil·ar·y) adj.
Cite this article
Pick a style below, and copy the text for your bibliography.
"pupil ." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 26 Mar. 2025 <https://www.encyclopedia.com>.
"pupil ." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (March 26, 2025). https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/pupil-0
"pupil ." The Oxford Pocket Dictionary of Current English. . Retrieved March 26, 2025 from Encyclopedia.com: https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/pupil-0
Citation styles
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
http://www.chicagomanualofstyle.org/tools_citationguide.html
American Psychological Association
Notes:
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.
pupil
pupil In the structure of the eye, circular aperture through which light falls onto the lens; it is located in the centre of the iris. Its diameter changes by reflex action of the iris to control the amount of light entering the eye.
Cite this article
Pick a style below, and copy the text for your bibliography.
"pupil ." World Encyclopedia. . Encyclopedia.com. 26 Mar. 2025 <https://www.encyclopedia.com>.
"pupil ." World Encyclopedia. . Encyclopedia.com. (March 26, 2025). https://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/pupil
"pupil ." World Encyclopedia. . Retrieved March 26, 2025 from Encyclopedia.com: https://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/pupil
Citation styles
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
http://www.chicagomanualofstyle.org/tools_citationguide.html
American Psychological Association
Notes:
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.
pupil
pupil2 circular opening in the iris of the eye. XVI. — (O)F. pupille or L. pūpilla, dim. of pūpa girl, doll, pupil of the eye (see prec.). The application of the L. words to the pupil of the eye is based on, or parallel to, that of Gr. kórē- maiden, girl, doll, pupil (the allusion being to the tiny images of persons and things that may be seen therein).
Cite this article
Pick a style below, and copy the text for your bibliography.
T. F. HOAD "pupil ." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 26 Mar. 2025 <https://www.encyclopedia.com>.
T. F. HOAD "pupil ." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (March 26, 2025). https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/pupil-2
T. F. HOAD "pupil ." The Concise Oxford Dictionary of English Etymology. . Retrieved March 26, 2025 from Encyclopedia.com: https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/pupil-2
Citation styles
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
http://www.chicagomanualofstyle.org/tools_citationguide.html
American Psychological Association
Notes:
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.
pupil
pupil1 orphan who is a minor and hence a ward XIV; one under instruction XVI. — (O)F. pupille m. and fem. or its source, L. pūpillus, -illa orphan, ward, dim. of pūpus boy, pūpa girl.
Cite this article
Pick a style below, and copy the text for your bibliography.
T. F. HOAD "pupil ." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 26 Mar. 2025 <https://www.encyclopedia.com>.
T. F. HOAD "pupil ." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (March 26, 2025). https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/pupil-1
T. F. HOAD "pupil ." The Concise Oxford Dictionary of English Etymology. . Retrieved March 26, 2025 from Encyclopedia.com: https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/pupil-1
Citation styles
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
http://www.chicagomanualofstyle.org/tools_citationguide.html
American Psychological Association
Notes:
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.
pupil
pupil (pew-pil) n. the circular opening in the centre of the iris, through which light passes into the lens of the eye.
—pupillary (pew-pil-er-i) adj.
Cite this article
Pick a style below, and copy the text for your bibliography.
"pupil ." A Dictionary of Nursing. . Encyclopedia.com. 26 Mar. 2025 <https://www.encyclopedia.com>.
"pupil ." A Dictionary of Nursing. . Encyclopedia.com. (March 26, 2025). https://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/pupil
"pupil ." A Dictionary of Nursing. . Retrieved March 26, 2025 from Encyclopedia.com: https://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/pupil
Citation styles
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
http://www.chicagomanualofstyle.org/tools_citationguide.html
American Psychological Association
Notes:
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.
pupil
pupil See iris.
Cite this article
Pick a style below, and copy the text for your bibliography.
"pupil ." A Dictionary of Biology. . Encyclopedia.com. 26 Mar. 2025 <https://www.encyclopedia.com>.
"pupil ." A Dictionary of Biology. . Encyclopedia.com. (March 26, 2025). https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pupil-0
"pupil ." A Dictionary of Biology. . Retrieved March 26, 2025 from Encyclopedia.com: https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pupil-0
Citation styles
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
http://www.chicagomanualofstyle.org/tools_citationguide.html
American Psychological Association
Notes:
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.
pupil
pupil See EYE.
Cite this article
Pick a style below, and copy the text for your bibliography.
MICHAEL ALLABY "pupil ." A Dictionary of Zoology. . Encyclopedia.com. 26 Mar. 2025 <https://www.encyclopedia.com>.
MICHAEL ALLABY "pupil ." A Dictionary of Zoology. . Encyclopedia.com. (March 26, 2025). https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pupil
MICHAEL ALLABY "pupil ." A Dictionary of Zoology. . Retrieved March 26, 2025 from Encyclopedia.com: https://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pupil
Citation styles
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
http://www.chicagomanualofstyle.org/tools_citationguide.html
American Psychological Association
Notes:
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.
More From encyclopedia.com
1/1