Definition of "monochromacy" []

• The quality of having only one independent channel for conveying color information in the eye, i.e. total color blindness. (noun)

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• "The veterinary ophthalmology researchers said the disorder -- called congenital achromatopsia or rod monochromacy -- is a rare autosomal recessive genetic disorder with an estimated prevalence in human beings of about 1 in 50,000."
• "A gifted artist, Lonewolf suffers from rod monochromacy."