noun
also mitral incompetence
: inability of the mitral valve to close perfectly permitting blood to flow back into the auricle and leading to varying degrees of heart failure
noun
also mitral incompetence
: inability of the mitral valve to close perfectly permitting blood to flow back into the auricle and leading to varying degrees of heart failure
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012