Definition of heat sink in English:

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heat sink

noun

A device or substance for absorbing excessive or unwanted heat.
Example sentences
  • Either way, the gauze, acting as a heat sink, removes the thermal energy from the system so that the temperature above or below it is not sufficient to ignite the gas.
  • Every computer contains a device known as a heat sink.
  • The expanding universe is quite an effective heat sink.

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