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retinitis pigmentosa

Pronunciation: /ˌpɪgmɛnˈtəʊsə/

Definition of retinitis pigmentosa

noun

[mass noun] Medicine
  • a chronic hereditary eye disease characterized by black pigmentation and gradual degeneration of the retina.

Origin:

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

retinitis pigmentosa in other Oxford dictionaries

Definition of retinitis pigmentosa in the US English dictionary

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