cornea

noun
cor·​nea | \ ˈkȯr-nē-ə \

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 \ adjective

Examples of cornea in a Sentence

Recent Examples on the Web

This compound converts into cornea-protecting vitamin A once in your body. Abigail L. Cuffey, Woman's Day, "5 Foods for Optimal Health," 27 Aug. 2012 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 When the patient removes the patch, the microneedles stay behind in the cornea. Kiona N. Smith, Ars Technica, "Delivering drugs directly to the eye using microneedles that dissolve," 9 Nov. 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, The Seattle Times, "Italy: Black athlete’s injury among cases probed for racism," 30 July 2018 This condition occurs when abnormal blood vessels start growing into the clear tissue of the cornea. Kiona N. Smith, Ars Technica, "Delivering drugs directly to the eye using microneedles that dissolve," 9 Nov. 2018 Over the past seven years, cases of an infection of the cornea, called Acanthamoeba keratitis, have nearly tripled among people who wear contact lenses in southeast England, CNN reports. Bartie Scott, Teen Vogue, "A Rare Eye Infection Is Spreading Among Contact Lens Wearers in the U.K.," 21 Sep. 2018 Gasho was recently diagnosed with Acanthamoeba Keratitis — a serious condition caused by tiny amoebas called Acanthamoeba that infect the covering of the cornea, according to the Centers for Disease Control and Prevention (CDC). Jennifer Earl, Fox News, "Pennsylvania woman says contact lens caused rare infection that led to 'stabbing' pain, possible blindness," 30 Aug. 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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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 14th century

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Statistics for cornea

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6 Jan 2019

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More Definitions for cornea

cornea

noun

English Language Learners Definition of cornea

: the clear outer covering of the eyeball

cornea

noun
cor·​nea | \ ˈkȯr-nē-ə \

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 \

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 \ 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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