cornea

noun

cor·​nea ˈkȯr-nē-ə How to pronounce cornea (audio)
: the transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior see eye illustration
corneal adjective

Examples of cornea in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Risk factors for refractive errors include having an eyeball that is too long or short or problems with the shape of your cornea. Vanessa Caceres, Verywell Health, 21 Nov. 2024 Poorly fitting lenses or those made with unsafe materials can block oxygen to the cornea, leading to complications like swelling or inflammation. Alyssa Hui-Anderson, Verywell Health, 23 Oct. 2024 This can lead to serious eye infections like keratitis, an inflammation of the cornea caused by bacteria or fungi. Alyssa Hui-Anderson, Verywell Health, 23 Oct. 2024 Healthcare providers use an ultrasound imaging device to measure the thickness of the cornea. Mark Gurarie, Health, 3 Oct. 2024 See all Example Sentences for cornea 

Word History

Etymology

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

First Known Use

14th century, in the meaning defined above

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

Dictionary Entries Near cornea

Cite this Entry

“Cornea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cornea. Accessed 13 Dec. 2024.

Kids Definition

cornea

noun
cor·​nea ˈkȯr-nē-ə How to pronounce cornea (audio)
: the transparent part of the coat of the eyeball that covers the iris and pupil and lets light through to the interior
corneal adjective

Medical Definition

cornea

noun
cor·​nea ˈkȯr-nē-ə How to pronounce cornea (audio)
: the transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior
corneal adjective

More from Merriam-Webster on cornea

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