/ Dictionary / Index D diaschisis: Meaning and Definition of Find definitions for: di•as•chi•sis Pronunciation: (dī-as'ku-sis), [key] — n. Med. a disturbance or loss of function in one part of the brain due to a localized injury in another part. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Dias Diaspora 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