/ Dictionary / Index U Ulúa: Meaning and Definition of Find definitions for: U•lú•a Pronunciation: (-l'ä), [key] — n. a river in NW Honduras, flowing NE to the Caribbean Sea. ab. 200 mi. (320 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ulu ululant Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language