Main Entry: di·as·chi·sis Pronunciation: dI-'as-k&-s&s Function: noun Inflected Form: pluraldi·as·chi·ses/-"sEz/ : the breaking up of a pattern of brain activity by a localized injury that temporarily throws the whole activity out offunction though destroying only part of a structure
diaschisis di·as·chi·sis (dī-ās'kĭ-sĭs) n. A sudden loss of function in a portion of the brain that is at a distance from the site of injury, but is connected to it by neurons.