ret·​i·​ni·​tis | \ ˌre-tə-ˈnī-təs How to pronounce retinitis (audio) \

Definition of retinitis

: inflammation of the retina

Examples of retinitis in a Sentence

Recent Examples on the Web Chaudhri suffers from retinitis pigmentosa, which causes degeneration of the retina. Steve Reaven,, "Area team offers the visually impaired chance to play hockey," 7 Aug. 2017 The Argus II, a bionic retina approved by the Food and Drug Administration, is now being used by more than 100 people with retinitis pigmentosa and other related conditions. Candy Sagon, charlotteobserver, "Protect eyes early to ward off vision loss," 9 June 2017 Andrei was afflicted with a retinal degenerative disease known as retinitis pigmentosa, which can cause vision impairment or vision loss. Bryce Alderton, Daily Pilot, "Divers Cove lookout, above the sea, has a new bench and sculpture fit for an octopus's garden," 20 June 2017 The two most common kinds of retina disorders are retinitis pigmentosa and macular degeneration, which together affect about more than 20 million Americans. Ben Panko, Smithsonian, "These Blind Mice Just Got a Vision Boost Thanks to a New Transplant Technique. Could Blind Humans Be Next?," 11 Jan. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'retinitis.' 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 retinitis

1821, in the meaning defined above

History and Etymology for retinitis

New Latin

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Time Traveler for retinitis

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The first known use of retinitis was in 1821

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Cite this Entry

“Retinitis.” Dictionary, Merriam-Webster, Accessed 27 Feb. 2021.

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More Definitions for retinitis


ret·​i·​ni·​tis | \ ˌret-ᵊn-ˈīt-əs How to pronounce retinitis (audio) \
plural retinitides\ -​ˈit-​ə-​ˌdēz How to pronounce retinitis (audio) \

Medical Definition of retinitis

: inflammation of the retina

Comments on retinitis

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