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.
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 However, ocular exposure to sulfur mustard can also produce long-term effects, including recurrent inflammation and erosion of the cornea. New Atlas, 27 Oct. 2024 In a healthy eye, excess aqueous humor exits through the trabecular meshwork, which are canals located between your iris (the colored part of the eye) and cornea (the clear outer portion). 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 24 Nov. 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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