verb (used with object), cu·mu·lat·ed, cu·mu·lat·ing.
- to heap up; amass; accumulate.
- heaped up.
- to accumulate
- (tr) to combine (two or more sequences) into one
adjective (ˈkjuːmjʊlɪt, -ˌleɪt)
- heaped up
1530s, from Latin cumulatus “heaped, increased, augmented,” past participle of cumulare “to heap,” from cumulus “mound, heap” (see cumulus). Related: Cumulated; cumulating.