/ Dictionary / Index D downstroke: Meaning and Definition of Find definitions for: down•stroke Pronunciation: (doun'strōk"), [key] — n. a downward stroke, as of a machine part, piston, or the like. a downward stroke in writing, often heavier and darker than an upward stroke. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: downstroke (Thesaurus) downstream downswing 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