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

So, data-processing satellites built to house AI computing will likely need massive radiators to expel heat away from their inner processing chips. — Jackie Wattles, CNN Money, 1 Oct. 2026

Though space is cold, its vacuum is a lousy place to dissipate heat, which is why Suncatcher’s chips must clock out to cool down and why the satellites require specialized radiators. — Peter Hall, Scientific American, 1 Oct. 2026

Google is testing combinations of heat pipes and radiators to move heat away from the processors. — Neetika Walter, Interesting Engineering, 24 Sep. 2026

In extreme situations, the flies can clog radiators, causing cars to overheat. — Karen Brewer Grossman, Southern Living, 17 Sep. 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