hypertrophic cardiomyopathy
Noun
Meaning
a disorder in which the heart muscle is so strong that it does not relax enough to fill with the heart with blood and so has reduced pumping ability
Source: WordNetHypernyms
Examples
Ali’s fledgling career has been put on hold after he was diagnosed with a heart problem called Hypertrophic Cardiomyopathy (HCM), a condition where a portion of the heart becomes thick without any obvious cause.