Copyright © Philip M. Parker, INSEAD. Terms of Use.
Definition: Cornea |
CorneaNoun1. Transparent anterior portion of the outer covering of the eye; it covers the lens and iris and is continuous with the sclera. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
Date "cornea" was first used: 14th century. (references) |
| Domain | Definition |
Health | The transparent part of the eye that covers the iris and the pupil and allows light to enter the inside. (references) |
Medicine | The transparent anterior portion of the fibrous coat of the eye consisting of five layers. Source: European Union. (references) |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
The cornea consists of several layers. First is a thin epithelial layer; these cells are fast-growing and easily regenerated, and are kept moist by the tears. Beneath this is a tough layer called Boman's membrane that protects the cornea. Underneath this is the stroma, a much thicker layer of transparent fibers. The stroma is responsible for most of the focusing; if it is damaged the cornea can lose its transparency and cause problems in vision.
See also: eye, visual perception
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Cornea."
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Source: compiled by the editor from various references; see credits. | |||
| Thumbnail | Description & Credit |  | This patient's congenital syphilitic disease resulted in the onset of interstitial keratitis, an inflammation of the connective tissue structure of the cornea. Syphilis is the most common cause for this condition. Credit: CDC. |
Source: pictures compiled by the editor from various references; see picture credits. | |||
| Subject | Topic | Quote |
Health | This fluid moistens the conjunctiva and cornea. (references) | |
This causes the cornea to swell and distort vision. (references) | ||
Endothelial cells are essential in keeping the cornea clear. (references) | ||
Source: compiled by the editor from ICON Group International, Inc.; see credits. | ||
| "Cornea" is generally used as a noun (singular) -- approximately 92.19% of the time. "Cornea" is used about 64 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Noun (singular) | 92.19% | 59 | 44,010 |
| Noun (proper) | 7.81% | 5 | 157,705 |
| Total | 100.00% | 64 | N/A |
Source: compiled by the editor from several corpora; see credits.
| The following table summarizes the usage of "cornea" based on a population census conducted in the United States. Ranks and frequencies are based on all names reported and classified. |
| Name | Usage/Gender | Usage per 100 million Persons | Rank in USA |
| Cornea | Last name | 100 | 86,507 |
| Source: compiled by the editor from several corpora; see credits. | |||
Expressions using "cornea": argyrosis cornea ♦ caligo cornea ♦ cornea guttata ♦ Luna cornea. Additional references. | |
| Source: compiled by the editor from various references; see credits. |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Language | Translations for "cornea"; alternative meanings/domain in parentheses. | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Arabic | قرنية العين, قرنية (context). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Bulgarian | роговица. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Chinese | '膜 (Corneal, Corneas). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Czech | rohovka. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Danish | cornea (horny layer, horny layer of epidermis, stratum corneum epidermidis, stratum corneum of skin). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Dutch | cornea. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Farsi | قرنیه(تش.). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Finnish | sarveiskalvo. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
French | cornée. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
German | Hornhaut (horn skin, horny skin), Cornea. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Greek | κερατοειδής χιτώνας (cornea opaca). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Hebrew | קשתית (Iris), קר ית "עין, קר ית. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Hungarian | szaruhártya (white of the eye). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Indonesian | selaput mata. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Italian | cornea. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Kanji | '膜 . (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Katakana | かくまく (diaphragm, nuclear membrane, partition). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Korean | 각막 (Corneal, Corneas). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Manx | uinnag ny sooilley. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Norwegian | hornhinne. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Pig Latin | orneacay córnea (horny layer, horny layer of epidermis, stratum corneum epidermidis, stratum corneum of skin). (various references) cornee. (various references) роговая оболочка глаза, роговица. (various references) rožnjača, kornea. (various references) córnea. (various references) hornhinna. (various references) saydam tabaka, kornea. (various references) рогівка. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Language | Period | Translations |
| Medieval Latin | 700-1500 | cornea tela. (various references) |
| Source: compiled by the editor from various references. | ||
Derivations | |
Words beginning with "cornea": corneae, corneal, corneas. (additional references) | |
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"Cornea" is suggested in spellcheckers for the following: Carnlea, Cienega, Cognee, Conae, Coprefa, corean, coreu, Corina, Corinia, corinii, Corlea, Corna, corne, Corneanu, Corneau, corneum, corney, cornia, Corniea, cornu, cornua, cornuta, cornwa, cornye, Coronea, correan, courne, crena, crocea, crocean, Csorna, Dobrnja, Gornja, Kornei, Koroneia, Orneau. (additional references) | |
| Source: compiled by the editor, based on several corpora (additional references). | |
| # of Phoneme Matches | Pronunciation | Word(s) rhyming with "cornea" (pronounced kô"rnēu) |
| 3 | -n ē u | apnea, Eugenia, gonia, hernia, insignia, insomnia, mania, megalomania, millennia, neurasthenia, petunia, pollinia, schizophrenia, Sinfonia, vaccinia, Xenia, Zinnia. |
Source: compiled by the editor (additional references); see credits. | ||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "a-c-e-n-o-r" | |
-1 letter: acorn, caner, canoe, crane, crone, nacre, narco, ocean, ocrea, racon, rance, recon. | |
-2 letters: acne, acre, aeon, aero, arco, cane, care, carn, cero, cone, core, corn, earn, narc, near, once, orca, race, roan. | |
-3 letters: ace, ane, arc, are, can, car, con, cor, ear, eon, era, ern, nae, nor, oar, oca, one, ora, orc, ore. | |
| Words containing the letters "a-c-e-n-o-r" | |
+1 letter: acrogen, coarsen, corneae, corneal, corneas, coronae, enactor, narcose, romance. | |
+2 letters: accentor, acrogens, acrolein, amelcorn, ancestor, anchored, anchoret, anoretic, anorexic, apocrine, canephor, caponier, careworn, carotene, cartoned, chaperon, choreman, coarsens, cocinera, coenamor, colander, colinear, conelrad, conferva, coparent, corncake, cornmeal, coronate, courante, crannoge, crayoned, creation, deaconry, enactors, enactory, encroach, endocarp, endosarc, falconer, nacreous, narcoses, novercal, ordnance, outrance, portance, procaine, ranchero, rancored, reaction, romanced, romancer, romances, scenario, veronica. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
| 1. Definition 2. Crosswords 3. Usage: Commercial 4. Images: Slideshow | 5. Images: Photo Album 6. Quotations: Non-fiction 7. Usage Frequency 8. Names: Frequency | 9. Expressions 10. Expressions: Internet 11. Translations: Modern 12. Translations: Ancient | 13. Derivations 14. Rhymes 15. Anagrams 16. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
