Definition of "pigmentosa" [pigmentosa]

• Same as tape-tum. (noun)

The Century Dictionary (Public Domain)

• "We're not talking about people who are born blind here, but for people suffering from macular degeneration or retinitis pigmentosa, which is what the father and daughter in this piece, has."
• ""After that they sent her to an eye doctor and we found out that she had retinitis pigmentosa, which is a degenerative disease of the rods and cones in her eyes," she said."
• "Scientists said they used a non-viral, synthetic nanoparticle carrier to improve and save the sight of mice with retinitis pigmentosa, which is incurable."