/ Dictionary / Index U UTI: Meaning and Definition of Find definitions for: UTI Pronunciation: [key] urinary tract infection. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Uther Utica Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language