noun[mass noun] Medicine
A chronic hereditary eye disease characterized by black pigmentation and gradual degeneration of the retina.
- Bryant has retinitis pigmentosa, an eye disease that has blinded four generations of her family.
- Homer has been legally blind since the age of 35 as a result of retinitis pigmentosa and glaucoma.
- Millions of people around the world live in a blurry or darkened world because of eye diseases such as macular degeneration or retinitis pigmentosa.
Mid 19th century: pigmentosa, feminine of Latin pigmentosus, from pigmentum 'pigment'.
For editors and proofreaders
Line breaks: ret¦in|itis pig¦ment|osa
Definition of retinitis pigmentosa in:
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.