/ Dictionary / Index Q quatercentenary: Meaning and Definition of Find definitions for: quat•er•cen•ten•ar•y Pronunciation: (kwot"ur-sen-ten'u-rē, -sen'tn-er"ē esp. Brit. kwot"ur&wdspcsen-tē'nu-rē), [key] — adj., n., pl. -ar•ies. —n. a 400th aniversary or its celebration. —adj. pertaining to or marking a period of 400 years; quatercentennial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: quatercentenary (Thesaurus) quater quatercentennial Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language