/ Dictionary / Index A aq. dest.: Meaning and Definition of Find definitions for: aq. dest. Pronunciation: [key] (in prescriptions) distilled water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aq. comm. aq. ferv. Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language