/ Dictionary / Index D diamond dust: Meaning and Definition of Find definitions for: dia'mond dust" Pronunciation: [key] pulverized diamonds, used as an abrasive. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diamond drill Diamond Head Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language