retinitispigmentosa

retinitis pig·men·to·sa (pĭg'mĕn-tōʹsə, -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.]

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