ra·​di·​a·​tor | \ ˈrā-dē-ˌā-tər How to pronounce radiator (audio) , 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 Looking to hide a radiator, unseemly storage, or kids' toys? Elizabeth Pash, House Beautiful, "Decorative Screens Are the Unsung Heroes of Interior Design," 28 Apr. 2021 Stone bas-reliefs at the second story depicted then-modern cars, with their upright radiator grilles and dinner plate-sized headlamps. Washington Post, "When it opened in 1927, the Capital Garage was the largest U.S. parking structure," 24 Apr. 2021 Portable radiator heaters use micathermic methods to generate heat via oil encased inside. Carsen Joenk, Popular Science, "Best space heater: Stay warm in every space, from the garage to the basement," 18 Feb. 2021 The other bedrooms, however, each have one giant radiator, and there is no way to turn the knob without breaking it off (a plumber onsite told us). BostonGlobe.com, "Ask the Remodeler: Renegade radiators, plus a basement fix for safety’s sake," 4 Apr. 2021 Soon, an ambulance came, and the man was released from the radiator and taken to the hospital. Katie Prout, The New Republic, "Inside the Last Men’s Hotel in Chicago," 2 Apr. 2021 Other upgrades include a new transfer case, drive shafts, radiator and shocks and springs. Bryan Hood, Robb Report, "This Land Rover Defender Camper Conversion Will Bring Rugged and Retro Style to the Campground," 26 Mar. 2021 The basket on my radiator by the front door is filled with cast-off masks. Jill Lepore, The New Yorker, "How Do Plague Stories End?," 24 Mar. 2021 Admittedly, this is not obvious from the show itself, which consists mostly of fabric that’s hanging or draped — including on, yes, a radiator — alongside photos and videos of similar displays. Washington Post, "In the galleries: Breaching the border between art and furniture," 12 Mar. 2021

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.

See More

First Known Use of radiator

1836, in the meaning defined above

Keep scrolling for more

Learn More about radiator

Time Traveler for radiator

Time Traveler

The first known use of radiator was in 1836

See more words from the same year

Statistics for radiator

Last Updated

4 May 2021

Cite this Entry

“Radiator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiator. Accessed 7 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

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 How to pronounce radiator (audio) \

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

More from Merriam-Webster on radiator

Nglish: Translation of radiator for Spanish Speakers

Britannica.com: Encyclopedia article about radiator

Comments on radiator

What made you want to look up radiator? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Star Wars Words Quiz

  • cu jedi training
  • The bounty portion of bounty hunters (such as Boba Fett) comes from a Latin word meaning
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!