|1.||a metal plate specially designed to conduct and radiate heat from an electrical component|
|2.||a layer of material placed within the outer skin of high-speed aircraft to absorb heat|
A reservoir for excess heat, especially in a mechanical or electrical device.
Note: One obstacle to the loading of circuits onto microprocessors is the heat generated by electrical circuits. Effective heat sinks, such as metal fins on top of a microprocessor, can provide part of the solution to this problem.