cornea

noun
cor·​nea | \ ˈkȯr-nē-ə How to pronounce cornea (audio) \

Definition of cornea

: the transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior — see eye illustration

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Other Words from cornea

corneal \ ˈkȯr-​nē-​əl How to pronounce corneal (audio) \ adjective

Examples of cornea in a Sentence

Recent Examples on the Web The lens will sit right on the cornea, and Dr. Ashley Tuan, vice president of medical devices at Mojo Vision, tells me it will be just like wearing normal contacts. Julian Chokkattu, Wired, "The Display of the Future Might Be in Your Contact Lens," 16 Jan. 2020 Her synthetic cornea failed, leaving her almost entirely blind. Alex Horton, chicagotribune.com, "New Hampshire woman faces difficult options as her body rejects face transplant," 25 Sep. 2019 One of his corneas went to Egypt; the other stayed in the United States. Shari Rudavsky, Indianapolis Star, "Jacob's father died waiting for an organ. So when time came, Jacob donated his organs.," 22 Dec. 2019 Her ophthalmologist quickly spotted an ulcer in the center of her cornea, which was positive for the pathogenic bacteria Pseudomonas aeruginosa. Beth Mole, Ars Technica, "Here’s why you should never use decorative contact lenses—in graphic pictures," 30 Oct. 2019 Her synthetic cornea failed, leaving her almost entirely blind. Alex Horton, chicagotribune.com, "New Hampshire woman faces difficult options as her body rejects face transplant," 25 Sep. 2019 Aravena said that a police tear gas canister hit her in the eye, damaging part of her cornea, and ultimately her vision. Flora Charner, CNN, "Beaten and blinded, Chile's protesters face "policy of punishment," says Amnesty International," 22 Nov. 2019 For example, myopia, or nearsightedness, usually happens when your eyeball is too long or your cornea (the outer layer on the top of your eye) is abnormally curved, according to the Mayo Clinic. Patia Braithwaite, SELF, "Here’s Why You Might Get a Headache From New Glasses," 20 Nov. 2019 The goal, says Clinch, is to strengthen the adhesion between the skin cells and the cornea. Wendy Grossman Kantor, PEOPLE.com, "Extreme Dry Eye Left Fox News' Shannon Bream Suicidal: 'I Was in Pain All the Time'," 14 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cornea.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cornea

14th century, in the meaning defined above

History and Etymology for cornea

Middle English, borrowed from Medieval Latin (short for cornea tēla "horny web," cornea tunica "horny covering," translating Greek kerātoeidḕs chitṓn), from feminine of Latin corneus "horny" — more at corneous

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Time Traveler for cornea

Time Traveler

The first known use of cornea was in the 14th century

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Statistics for cornea

Last Updated

17 Feb 2020

Cite this Entry

“Cornea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cornea. Accessed 21 Feb. 2020.

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More Definitions for cornea

cornea

noun
How to pronounce cornea (audio)

English Language Learners Definition of cornea

technical : the clear outer covering of the eyeball

cornea

noun
cor·​nea | \ ˈkȯr-nē-ə How to pronounce cornea (audio) \

Kids Definition of cornea

: the transparent outer layer of the front of the eye covering the pupil and iris

cornea

noun
cor·​nea | \ ˈkȯr-nē-ə How to pronounce cornea (audio) \

Medical Definition of cornea

: the transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior

Other Words from cornea

corneal \ -​əl How to pronounce corneal (audio) \ adjective

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More from Merriam-Webster on cornea

Spanish Central: Translation of cornea

Nglish: Translation of cornea for Spanish Speakers

Britannica English: Translation of cornea for Arabic Speakers

Britannica.com: Encyclopedia article about cornea

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