¦ noun a device or substance for absorbing excessive or unwanted heat.
heatsink
<hardware> /heet sink/ (from "sink", electronics jargon for
something which takes in current) A piece of thermally
conductive metal attached to a semiconductor or other
electronic device and designed to prevent it from overheating
by conducting heat away from it and radiating it to the
environment. Heat sinks often have fins to increase their
surface area. They occasionally have fans attached. Heatsink compound can be smeared between the device and the heatsink to improve thermal conduction.
(1997-06-10)
Heatsink
A heatsink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature. In computers, heat sinks are used to cool CPUs, GPUs, and some chipsets and RAM modules.
A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature. In computers, heat sinks are used to cool CPUs, GPUs, and some chipsets and RAM modules.