/ Dictionary / Index D downwelling: Meaning and Definition of Find definitions for: down•well•ing Pronunciation: (doun'wel"ing), [key] — n. Oceanog. a downward current of surface water in the ocean, usually caused by differences in the density of seawater. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. downwash downwind Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language