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

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. SI.com, "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 Occasionally, the mice suffered from cloudy corneas from the injections, but these symptoms cleared up within a week. David Grossman, Popular Mechanics, "Nanoinjections Let Mice See Infrared Light," 4 Mar. 2019 Subsequent videos show dozens of men, women and children lying lifeless on the ground with foam coming from their mouths and nostrils and what appear to be burned corneas. David E. Sanger And Ben Hubbard, New York Times, "A Hard Lesson in Syria: Assad Can Still Gas His Own People," 14 Apr. 2018 An already-limited air flow, exacerbated by your contacts being left in, can cause swelling and small tears in the cornea that leave it vulnerable. Carolyn L. Todd, SELF, "'Today' Anchor Craig Melvin Got a Corneal Ulcer From Sleeping in His Contacts," 20 Sep. 2018 Her ability to compete in the track-and-field championships is uncertain because eggshell fragments injured her cornea. Frances D'emilio, Fox News, "Italy: Black athlete's injury among cases probed for racism," 31 July 2018 Her ability to compete in the track-and-field championships is uncertain because eggshell fragments injured her cornea. Frances D'emilio, Fox News, "Italy: Black athlete's injury among cases probed for racism," 31 July 2018

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

23 Jun 2019

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Time Traveler for cornea

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

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More Definitions for cornea

cornea

noun

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

Comments on cornea

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