retinitis-pigmentosa

retinitis pigmentosa

[pig-men-toh-suh, -muhn-]
noun Ophthalmology.
degeneration of the retina manifested by night blindness and gradual loss of peripheral vision, eventually resulting in tunnel vision or total blindness.

Origin:
1860–65; < Neo-Latin: pigmentary retinitis. See pigment, -ose1

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World English Dictionary
retinitis pigmentosa (ˌpɪɡmənˈtəʊsə)
 
n
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]

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American Heritage
Medical Dictionary

retinitis pigmentosa retinitis pig·men·to·sa (pĭg'mən-tō'sə, -měn-)
n.
A hereditary degenerative disease of the retina, producing conditions such as night blindness, pigmentation changes in the retina, narrowing of the visual field, and the eventual loss of vision. Also called pigmentary retinopathy, tapetoretinal retinopathy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
retinitis pigmentosa   (rět'n-ī'tĭs pĭg'měn-tō'sə)  Pronunciation Key 
A hereditary degenerative disease of the retina, characterized by difficulty seeing at night, pigmentary changes within the retina, and eventual loss of vision.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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