hypertrophic cardiomyopathy
noun(hypertrophic cardiomyopathy)
cardiomyopathy that is characterized by ventricular hypertrophy especially of the left ventricle which affects the interventricular septum more than the free ventricular wall, that may cause mitral insufficiency or obstructed left ventricle outflow, and that is marked by chest pain, syncope, and palpitations —abbreviation HCM