/ Dictionary / Index C cumuliform: Meaning and Definition of Find definitions for: cu•mu•li•form Pronunciation: (ky'myu-lu-fôrm"), [key] — adj. having the appearance or character of cumulus clouds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cumuliform (Thesaurus) cumulative voting cumulo- Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language