Final answer:
Myocardial ischemia refers to a reduced blood supply to the heart tissue, which can cause damage to the heart muscle.
Step-by-step explanation:
The medical term for a reduced blood supply to the heart tissue, which can lead to damage to the heart muscle, is myocardial ischemia. Ischemia occurs when there is a decreased blood flow to a specific area, in this case, the heart tissue. This can happen due to a blocked coronary artery, which prevents oxygen and nutrients from reaching the heart muscle.