/ Dictionary / Index D diabolism: Meaning and Definition of Find definitions for: di•ab•o•lism Pronunciation: (dī-ab'u-liz"um), [key] — n. action aided or caused by the devil; sorcery; witchcraft. the character or condition of a devil. a doctrine concerning devils. a belief in or worship of devils. action befitting the devil; deviltry. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diabolism (Thesaurus) diabolic diabolize Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language