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

An animal-lover, DeWolfe fed the mice that lived in a hole next to the radiator behind his swivel chair in the press room. Ann Zaniewski, Detroit Free Press, "Detroit's old police HQ: Escapes, vanishing evidence, bird corpses," 9 Mar. 2018 One commenter who had bragged about chaining a woman to a radiator publicly lamented that two of his favorites were leaving Bellevue. Nina Burleigh, Newsweek, "Tech Bros Bought Sex Trafficking Victims by Using Amazon and Microsoft Work Emails," 21 Dec. 2017 Also, don't place houseplants over direct sources of heat, such as radiators. 3. Olivia Rassow, ELLE Decor, "The Top 10 Indoor Gardening Tips," 3 Apr. 2014 The 7,500-square-foot store is stocked nearly from floor to ceiling with tools and nails, screws and bolts, paint and pipe, rope and radiator fittings, garden hoses and grass seed. Mike Nolan, Daily Southtown, "Nailing a sale? Owner of historic hardware store seeks buyer who will keep business running," 11 June 2018 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

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

22 Nov 2018

Look-up Popularity

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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More from Merriam-Webster on radiator

Rhyming Dictionary: Words that rhyme with radiator

Spanish Central: Translation of radiator

Nglish: Translation of radiator for Spanish Speakers

Britannica.com: Encyclopedia article about radiator

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