retinitis noun. [rɛtɪ'nʌɪtɪs] M19.
[from RETINA + -ITIS.]
Medicine. Inflammation or apparent inflammation of the retina.
retinitis pigmentosa [pɪgmɛn'tǝʊzǝ] a chronic hereditary retinopathy characterized by black pigmentation and gradual degeneration of the retina.

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