noun
a metal conductor specially designed to conduct (and radiate) heat (Freq. 1)
* * *
noun : a substance or device for the absorption or dissipation of unwanted heat (as from a process or an electronic device)
* * *
1. Thermodynam. any environment or medium that absorbs heat.
2. Also, heatsink. Electronics. a metallic heat exchanger designed to absorb and dissipate excess heat from one of the devices, as a transistor or resistor, in a circuit.
[1935-40]
* * *
heat sink noun
Something into which unwanted heat can be directed
• • •
Main Entry: ↑heat
* * *
heat sink,
any one of various devices or materials that absorb heat, such as heat exchangers or metallic elements: »
In order to develop further the thermal conditions surrounding the spacecraft, these chambers are invariably equipped with shrouds of heat sinks (Karl A. Geiger).
* * *
n. a device or substance for absorbing excessive or unwanted heat
Useful english dictionary. 2012.