/ Dictionary / Index D dispersant: Meaning and Definition of Find definitions for: dis•per•sant Pronunciation: (di-spûr'sunt), [key] — n. something that disperses. any admixture to a dispersion capable of maintaining the dispersed particles in suspension. —adj. acting as a dispersant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dispersal disperse Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language