/ Dictionary / Index D Diabelli: Meaning and Definition of Find definitions for: Dia•bel•li Pronunciation: (dē"ä-bel'ē), [key] 1781–1858, Austrian composer and music publisher. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diabatic diabetes Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language