/ Dictionary / Index D D.D.Sc.: Meaning and Definition of Find definitions for: D.D.Sc. Pronunciation: [key] Doctor of Dental Science. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. DDS DDT Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language