/ Dictionary / Index Q quadriennial: Meaning and Definition of Find definitions for: quad•ri•en•ni•al Pronunciation: (kwod"rē-en'ē-ul), [key] — adj. quadrennial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quadricycle quadriennium Related Content Daily Word Quiz: gossamer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language