radiator

noun

ra·​di·​a·​tor ˈrā-dē-ˌā-tər 

 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

Old hotel radiators were transformed into displays, as was a church banister found in a flea market in Italy. —Luisa Zargani, Footwear News, 21 July 2025

The trailer also features a hydronic heating system with five silent radiators to evenly distribute heat throughout the trailer. —Bryan Rogala, Outside Online, 25 May 2025

This can include a sunspot, a radiator cover, or even a warm lap. —Alyce Collins, MSNBC Newsweek, 14 May 2025

Ryan Young, a senior economist at the Competitive Enterprise Institute, a nonpartisan think tank, said copper is an integral component in electrical wiring and plumbing, as well being used as a heat conductor in radiators and household appliances. —Anne Marie D. Lee, CBS News, 9 July 2025

Word History

First Known Use

1836, in the meaning defined above

Rhymes for radiator

• activator
• actuator
• agitator
• alligator
• allocator
• alternator
• animator
• annotator
• applicator
• arbitrator
• aspirator
• aviator

Kids Definition

radiator

noun

ra·​di·​a·​tor ˈrād-ē-ˌāt-ər 

: 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