Breadcrumb Home > Dictionary > Index Q quadrennium: Meaning and Definition of Find definitions for: quad•ren•ni•um Pronunciation: (kwo-dren'ē-um), [key] — pl. quad•ren•ni•ums, quad•ren•ni•a a period of four years. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: quadrennium (Thesaurus) quadrennial quadri- TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language