/ Dictionary / Index D diastrophism: Meaning and Definition of Find definitions for: di•as•tro•phism Pronunciation: (dī-as'tru-fiz"um), [key] — n. Geol. Also calledthe action of the forces that cause the earth's crust to be deformed, producing continents, mountains, changes of level, etc. any such resulting deformation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diastrophism (Thesaurus) diastolic diastyle Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language