ra·di·a·tor | \ˈrā-dē-ˌā-tər, dialectal ˈra-\

Definition of radiator 

: 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

But more than that, the extensive supply of blood vessels in the ears serve as a natural radiator for these tropical and subtropical animals. Bradley J. Fikes, sandiegouniontribune.com, "For the Fourth, bring out the (San Diego Zoo) babies!," 3 July 2018 But his route there began in less glittery circumstances, in a bare room with a radiator off a Detroit freeway. Brian Mccollum, Detroit Free Press, "Behind the scenes: When Motown met Michael Jackson and the Jackson 5," 31 Mar. 2018 There's no engine to feed with air and few radiators to cool, so the body isn't scarred with intake ducts, scoops, or vents. Jonathan M. Gitlin, Ars Technica, "7:57:148—Volkswagen makes racing history with record-breaking electric race car," 29 June 2018 Radiator fluid: Engines produce a lot of heat and the radiator keeps it cool. Alex Leanse, Popular Mechanics, "How to Get Your Car Ready For Your Next Road Trip," 25 Apr. 2017 So are the table tops and a bench that sits atop an old radiator. Kathy Flanigan, Milwaukee Journal Sentinel, "Vennture Brew Co. brings coffee and beer to Washington Heights neighborhood," 11 July 2018 Doesn’t that mean that dealers should not be charging for fluids when cars are brought in for oil, radiator, or transmission fluid changes? Bob Weber, Philly.com, "Drive belts don't just fall off in the rain," 7 July 2018 With qualifying rained out, Ryan Preece started on the pole in his Joe Gibbs Camry, but radiator problems put him out early. Steven Cole Smith, OrlandoSentinel.com, "Kyle Larson takes Firecracker 250 after wild finish," 7 July 2018 Also working to benefit fuel economy are auto stop-start at idle, active radiator shutters, underbody panels and front air curtain intakes (to settle turbulence at the wheel wells). Mark Maynard, sandiegouniontribune.com, "2019 Volkswagen Jetta: 7th generation wide-body reboot," 6 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radiator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of radiator

1836, in the meaning defined above

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Statistics for radiator

Last Updated

11 Oct 2018

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Time Traveler for radiator

The first known use of radiator was in 1836

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More Definitions for radiator



English Language Learners Definition of radiator

: a large, metal device that is next to the wall in a room and that becomes hot and provides heat for the room when hot water passes through it

: a device that is used to keep the engine of a vehicle from getting too hot


ra·di·a·tor | \ˈrā-dē-ˌā-tər \

Kids Definition of radiator

: a device to heat air (as in a room) or to cool an object (as an automobile engine) by heating the surrounding air

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not any or not one

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