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Definition of heatsink
heatsink
/ˈhiːt.sɪŋk/
heat · sink
Plural:heatsinks
heatsink Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Rare
Syllables
2
heatsink Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
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.
Example
"The technician installed a larger copper heatsink on the processor to prevent the computer from overheating during intensive tasks."
Synonyms
View all synonyms for heatsinkCite this Entry
Wordmom. (2026). Definition of Heatsink. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/heatsink