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

The electrical system had to be replaced, and there wasn’t a single radiator or bathroom in the entire space. —Matthew Sedacca, Curbed, 10 June 2026

Early June in Chicago may be sunny and beautiful, chilly enough for the radiators to kick in, or rainy and even stormy. —Adam Harrington, CBS News, 9 June 2026

The three fans on the radiator themselves support ARGB lighting and are 28mm thick. —John Burek, PC Magazine, 7 June 2026

The number of heating and cooling systems and heat exchangers and radiators that is throughout that powertrain boggles the mind. —Joel Feder, The Drive, 3 June 2026

Word History

First Known Use

1836, in the meaning defined above

Rhymes for radiator

• creator
• curator
• debater
• deflator
• dictator
• dilator
• equator
• locator
• piscator
• pronator
• relator
• rotator

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