/ Dictionary / Index U Urartu: Meaning and Definition of Find definitions for: U•rar•tu Pronunciation: (oo-rär't), [key] — n. an ancient kingdom, c1270–750b.c., in E Turkey, on the shore of Lake Van: often invaded by Assyria. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Urartian urase Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language