Definition of retinitis pigmentosa in English:

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retinitis pigmentosa

Pronunciation: /ˌpɪɡmɛnˈtəʊsə/

noun

[mass noun] Medicine
A chronic hereditary eye disease characterized by black pigmentation and gradual degeneration of the retina.
Example sentences
  • Bryant has retinitis pigmentosa, an eye disease that has blinded four generations of her family.
  • Homer has been legally blind since the age of 35 as a result of retinitis pigmentosa and glaucoma.
  • Millions of people around the world live in a blurry or darkened world because of eye diseases such as macular degeneration or retinitis pigmentosa.

Origin

Mid 19th century: pigmentosa, feminine of Latin pigmentosus, from pigmentum 'pigment'.

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