/ Dictionary / Index D dental floss: Meaning and Definition of Find definitions for: den'tal floss" Pronunciation: [key] a soft, strong, waxed or unwaxed thread, usually made of nylon, for drawing between the teeth to remove food particles and prevent the buildup of plaque. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dental dam dental hygiene Related Content Daily Word Quiz: divulge Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language