retinitis pigmentosa

noun

retinitis pig·​men·​to·​sa -ˌpig-mən-ˈtō-sə How to pronounce retinitis pigmentosa (audio)
-(ˌ)men-,
-zə
: any of several hereditary progressive degenerative diseases of the eye marked by night blindness in the early stages, atrophy and pigment changes in the retina, constriction of the visual field, and eventual blindness

Examples of retinitis pigmentosa in a Sentence

Recent Examples on the Web
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In 2018, Edith Lemay and Sébastien Pelletier learned that three of their four children were losing their vision because of retinitis pigmentosa (RP), a progressive, incurable retinal disease. Andrew Leland, Travel + Leisure, 6 Mar. 2025 Both companies' devices are intended for patients with retinitis pigmentosa, a genetic disease that, in its most severe form, gradually robs people of their vision. IEEE Spectrum, 13 Jan. 2012 In early 2015, Armentrout was diagnosed with retinitis pigmentosa, a group of rare genetic disorders that involve a breakdown and death of cells in the retina, eventually resulting in loss of vision, among other complications. Rosy Cordero, Deadline, 16 Dec. 2024 Both are legally blind due to a rare disease called retinitis pigmentosa (RP) that causes loss of vision over time — Castle was diagnosed at 16, Kadish at 21. Jenelle Riley, Variety, 16 Dec. 2024 See All Example Sentences for retinitis pigmentosa

Word History

Etymology

New Latin, pigmented retinitis

First Known Use

1859, in the meaning defined above

Time Traveler
The first known use of retinitis pigmentosa was in 1859

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Cite this Entry

“Retinitis pigmentosa.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/retinitis%20pigmentosa. Accessed 11 Mar. 2025.

Medical Definition

retinitis pigmentosa

noun
retinitis pig·​men·​to·​sa -ˌpig-mən-ˈtō-sə, -(ˌ)men-, -zə How to pronounce retinitis pigmentosa (audio)
: any of several hereditary progressive degenerative diseases of the eye marked by night blindness in the early stages, atrophy and pigment changes in the retina, constriction of the visual field, and eventual blindness
abbreviation RP

called also pigmentary retinopathy

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