/ Dictionary / Index N natriuresis: Meaning and Definition of Find definitions for: na•tri•u•re•sis Pronunciation: (nā"tru-yoo-rē'sis), [key] — n. excretion of sodium in the urine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: natriuresis (Thesaurus) natrium natrolite Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language