/ Dictionary / Index D decolorant: Meaning and Definition of Find definitions for: de•col•or•ant Pronunciation: (dē-kul'ur-unt), [key] — adj. having the property of removing color; bleaching. —n. a decolorant substance or agent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. decolor decolorize Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language