constrictive cardiomyopathy /kənstrik″tiv kär′dē·omī·op″əthe/ [L, constringere, to draw tight; Gk, kardia, heart, mys, muscle, pathos, disease] , a heart disorder characterized by decreased diastolic compliance of the ventricles, imitating constrictive pericarditis. Also called restrictive cardiomyopathy.