from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. complete color blindness; colors can be differentiated only on the basis of brightness


mono- + Ancient Greek χρῶμα (khrōma, "color"). (Wiktionary)


  • 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.

    The Money Times

  • A gifted artist, Lonewolf suffers from rod monochromacy. Press Releases


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