Final answer:
A blood clot formed at the site of an atherosclerotic plaque is called a thrombus.
Step-by-step explanation:
A blood clot formed at the site of an atherosclerotic plaque is called a thrombus. A thrombus is an aggregation of platelets, erythrocytes, and even WBCs typically trapped within a mass of fibrin strands. It can form within an intact or slightly damaged blood vessel and can decrease or block the flow of blood.