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retinitis pigmentosa

(pig men tō)

an inherited, incurable eye disease that gradually destroys the retina and optic nerve, slowly reducing the field of vision until total blindness occurs

See retinitis pigmentosa in American Heritage Dictionary 4

noun
A hereditary degenerative disease of the retina, characterized by night blindness, pigmentary changes within the retina, and eventual loss of vision.

Origin:

Origin: New Latin pigmentōsa

Origin: , feminine of pigmentōsus, pigmented

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