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

Other key features include a small and compact design with a big sound courtesy of a 2-inch, full-range driver alongside a 2-inch passive radiator. —Mark Sparrow, Forbes.com, 18 June 2025

It’s saved me countless trips to the laundromat—and spared me the desperate move of drying socks on a radiator. —Siobhan Reid, Travel + Leisure, 30 May 2025

On the inside, the case can fit full-size ATX motherboards and up to a 360 mm radiator for CPU cooling, and modern high-end GPUs like the GeForce RTX 5090 or 5080 should be able to fit inside. —Andrew Cunningham, ArsTechnica, 21 May 2025

These radiators cool the circulating liquid and pump it back into the IX700. —John Burek, PC Magazine, 28 May 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