What is the correct term for the metal object in between the CPU and the CPU fan within a computer system?

The correct term for the metal object in between the CPU and the CPU fan within a computer system is a heat sink. A heat sink is a passive cooling component that is used to dissipate the heat generated by the CPU during its operation. It is made of metal, usually aluminum or copper, and is designed to maximize the surface area exposed to the surrounding air. The heat sink absorbs the heat from the CPU and then transfers it to the air, preventing the CPU from overheating and maintaining its optimal performance.