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

Handler explained that a pterygium can extend onto the cornea, affecting vision. Beth Wood, San Diego Union-Tribune, "Protect your eyes for life with healthy diet, sun shielding," 24 June 2019 Holt attempted to score from second but was thrown out by Blue Jays left fielder Lourdes Gurriel Jr. Holt recently returned from the injured list on May 27 after recovering from a a cornea scratch in his right eye. Julian Mcwilliams,, "Brock Holt leaves game vs. Blue Jays with left hamstring tightness," 23 June 2019 To protect Bagel’s corneas from scratches, a friend of Karen’s rigged up some special kitty sunglasses: An elastic band slips around the head and tucks under the chin, like wrestling headgear. Andrea Sachs, Washington Post, "Meet Sunglass Cat, an Instagram star with an eye-opening message of acceptance," 11 June 2019 Donating one's body for medical school use isn't typically compatible with also being an organ donor (except for corneas), but ask before signing up. Stephanie Innes, azcentral, "5 things you need to know before donating your body to science," 10 June 2019 Major organs, as well as corneas, tendons, skin and bones. Stephen J. Beard, Indianapolis Star, "Here’s how to become an organ donor and save lives," 4 Apr. 2018 Ok then, strap in and get your corneas around this lot of rumours featuring the likes of Ander Herrera, Ismaila Sarr, Adrien Rabiot...and even Terence Kongolo., "Transfer Rumours: Herrera's Next Move, Maguire Latest, Sarr to Newcastle or Watford & More," 18 June 2019 Min Zhao at the University of California, Davis, showed that rips in the cornea heal more quickly when certain ion channels are manipulated with simple eye drops to increase the size of wound currents—bioelectricity without the electricity. Sally Adee, Quartz, "Our bodies are full of electricity that could help us fight cancer," 30 May 2019 These exams include a number of procedures to assess both your eyesight and ocular health, including pupil dilation to see the optic nerve and retina and a thorough look at the front of your eye to look for things like cataracts or cornea scratches. Carolyn L. Todd, SELF, "Exactly How Often You Really Need to See Different Kinds of Doctors," 17 Jan. 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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Statistics for cornea

Last Updated

7 Jul 2019

Look-up Popularity

Time Traveler for cornea

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

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More Definitions for cornea



English Language Learners Definition of cornea

technical : the clear outer covering of the eyeball


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


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 Encyclopedia article about cornea

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