/ Dictionary / Index I incretion: Meaning and Definition of Find definitions for: in•cre•tion Pronunciation: (in-krē'shun), [key] — n. Physiol. a substance, as a hormone, that is secreted internally. the process of such secretion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. increscent incriminate Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language