colorblind col·or·blind or col·or-blind (kŭl'ər-blīnd')
Partially or totally unable to distinguish certain colors.
|colorblind (kŭl'ər-blīnd') Pronunciation Key
Unable to distinguish certain colors. Humans who are colorblind usually cannot distinguish red from green. Many animals, including cats and dogs, are colorblind and unable to distinguish more than a few colors.