radiator

noun

ra·​di·​a·​tor ˈrā-dē-ˌā-tər How to pronounce radiator (audio)
 dialectal  ˈra-
: one that radiates: such as
a
: any of various devices (such as a series of pipes or tubes) for transferring heat from a fluid within to an area or object outside
b
: a transmitting antenna

Examples of radiator in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Thermostat wars aren't it, speaking as someone in a relationship with a human radiator. Meredith Wilshere, PEOPLE, 25 Oct. 2025 The dominant cooling strategies today center around advances in heat sinks, fans, and radiators. IEEE Spectrum, 20 Oct. 2025 This research supports the development of X-point radiator (XPR) regimes, a promising operating mode for future fusion power plants. Aman Tripathi, Interesting Engineering, 19 Oct. 2025 The Sport Pack includes a quickshifter, engine guard, radiator grille protection, and a bikini fairing, along with other cosmetic upgrades. New Atlas, 19 Oct. 2025 See All Example Sentences for radiator

Word History

First Known Use

1836, in the meaning defined above

Time Traveler
The first known use of radiator was in 1836

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Cite this Entry

“Radiator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiator. Accessed 29 Oct. 2025.

Kids Definition

radiator

noun
ra·​di·​a·​tor ˈrād-ē-ˌāt-ər How to pronounce radiator (audio)
: one that radiates
especially : any of various devices (as a set of pipes or tubes) for transferring heat from a fluid within to an area or object outside

More from Merriam-Webster on radiator

Last Updated: - Updated example sentences
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