from The Century Dictionary.

  • Relating to or discovered by John Dalton, a noted English chemist (1766–1844).
  • noun One affected by colorblindness. See daltonism.

from the GNU version of the Collaborative International Dictionary of English.

  • noun One afflicted with color blindness.


Sorry, no etymologies found.


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  • I always ask people in front of which I have to talk, if somebody is daltonian … One day, I had to use a yellow chalk on a green board, and, of course, Murphy's law applied: someone could not see at all what I was writing.

    northtemple (+ comments)


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