/ Dictionary / Index C cumulate: Meaning and Definition of Find definitions for: cu•mu•late Pronunciation: (v.ky'myu-lāt"adj.ky'myu-lit, -lāt"), [key] — v., adj. -lat•ed, -lat•ing, —v.t. to heap up; amass; accumulate. —adj. heaped up. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cumulate (Thesaurus) cumshaw cumulation Related Content Daily Word Quiz: kiln Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language