/ Dictionary / Index Q quinquefoil: Meaning and Definition of Find definitions for: quin•que•foil Pronunciation: (kwing'kwu-foil", kwin'-), [key] — n. cinquefoil (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quinquefid quinquennial Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language