/ Dictionary / Index U uro-: Meaning and Definition of Find definitions for: uro- Pronunciation: [key] a combining form meaning “urine,” used in the formation of compound words: urology. uro- Pronunciation: [key] a combining form meaning “tail,” used in the formation of compound words: uropod. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. urnfield urochord Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language