heatsink

heatsink is the alternative spelling of heat sink.

Meaning of heat sink

Noun

heat sink (plural heat sinks)

An object, system or environment that absorbs and dissipates heat from objects in thermal contact (either direct or radiant) with it.
A place toward which the heat moves in a system.
A material capable of absorbing heat.

Verb

heatsink (third-person singular simple present heatsinks, present participle heatsinking, simple past heatsinked, past participle heatsinked or heatsunk)

(transitive) To fit with a heat sink.
- It was necessary to heatsink the device through the center conductor of the coax thereby producing a total thermal resistance from the active layer to the ambient of almost 50°C/watt.1971, Joseph Stewart Bravman, Thermal effects in the operation of GaAs transferred electron microwave oscillators, page 138
- The device itself can dissipate a peak power of 78 W when properly heatsinked and has a 65 W steady dissipation.2012, Robert B. Northrop, Analysis and Application of Analog Electronic Circuits to Biomedical Instrumentation, page 385

Forms of heatsink

Noun
plural	heatsinks
Verb
third-person singular present	heatsinks
present participle	heatsinking
past	heatsinked
past participle	heatsinked
past participle	heatsunk

Questions about heatsink

What does heatsink mean?: Heatsink means to fit with a heat sink.
What is heatsink the alternative spelling of?: Heatsink is the alternative spelling of heat sink.
What part of speech is heatsink?: Heatsink is a verb.
What is the past tense of heatsink?: The past tense of heatsink is heatsinked.

Words near heatsink in the dictionary

Adapted from Wiktionary: heatsink (page history and authors); heat sink (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Cite this entry: “heatsink.” Word.ws, https://word.ws/heatsink. Based on Wiktionary, CC BY-SA 4.0.