/ Dictionary / Index E excretion: Meaning and Definition of Find definitions for: ex•cre•tion Pronunciation: (ik-skrē'shun), [key] — n. the act of excreting. the substance excreted, as urine or sweat, or certain plant products. ex•cre•tion Pronunciation: (ik-skrē'shun), [key] — n. the state of being excrescent. an excrescence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: excretion (Thesaurus) excrete excretory Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language