/ Dictionary / Index D dextro: Meaning and Definition of Find definitions for: dex•tro Pronunciation: (dek'strō), [key] — adj. Optics. dextrorotatory. dextro- Pronunciation: [key] a combining form meaning “right,” used in the formation of compound words: dextrorotatatory. a combining form meaning “turning clockwise”: dextroglucose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dextrin dextroamphetamine Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language