/ Dictionary / Index D decolor: Meaning and Definition of Find definitions for: de•col•or Pronunciation: (dē-kul'ur), [key] — v.t. to remove the color from; deprive of color; bleach. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decolor (Thesaurus) decolonize decolorant Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language