/ Dictionary / Index A accumulation: Meaning and Definition of Find definitions for: ac•cu•mu•la•tion Pronunciation: (u-ky"myu-lā'shun), [key] — n. act or state of accumulating; state of being accumulated. that which is accumulated; an accumulated amount, number, or mass. growth by continuous additions, as of interest to principal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: accumulation (Thesaurus) accumulate accumulation point Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language