/ Dictionary / Index D diabatic: Meaning and Definition of Find definitions for: di•a•bat•ic Pronunciation: (dī"u-bat'ik), [key] — adj. occurring with an exchange of heat (opposed to adiabatic): a diabatic process. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diabatic (Thesaurus) diabase Diabelli Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language