retinitis pigmentosa

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retinitis pig·men·to·sa

 (pĭg′mĕn-tō′sə, -mən-)
n.
A hereditary degenerative disease of the retina, characterized by night blindness, pigmentary changes within the retina, and eventual loss of vision.

[New Latin pigmentōsa, feminine of pigmentōsus, pigmented.]

retinitis pigmentosa

(ˌpɪɡmənˈtəʊsə)
n
(Medicine) a degenerative hereditary disease of the human eye, characterized by pigmentary changes in the retina, night blindness, and eventual loss of vision
[C19: pigmentosa, feminine of Latin pigmentosus]

retini′tis pig•men•to′sa

(ˌpɪg mɛnˈtoʊ sə, -mən-)
n.
degeneration of the retina manifested by night blindness and gradual loss of peripheral vision, eventually resulting in tunnel vision or total blindness.
[1860–65; < New Latin: pigmentary retinitis. See pigment, -ose1]

retinitis pigmentosa

Degeneration of the light-sensitive cells of the retina.
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