/ Dictionary / Index P polyuria: Meaning and Definition of Find definitions for: pol•y•u•ri•a Pronunciation: (pol"ē-yoor'ē-u), [key] — n. Pathol. the passing of an excessive quantity of urine, as in diabetes, in certain nervous diseases, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polyuria (Thesaurus) polyurethane polyvalent Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language