/ Dictionary / Index D dental dam: Meaning and Definition of Find definitions for: den'tal dam' Pronunciation: [key] a flat piece of latex used to prevent the transfer of bodily fluids during cunnilingus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dental caries dental floss 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