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

Anyone who isn’t mounting 3.5-inch drives can use the entire space for a radiator and power supply by removing the cage entirely, as the picture below makes clear. —PCMAG, 2 Mar. 2025

White truck with a trailer dumped liquid from the radiator into a storm drain. —Isha Trivedi, The Mercury News, 25 Feb. 2025

Which is to say that he’s fatally severed his neck by hanging himself from the radiator with some rusty chicken wire. —David Ehrlich, IndieWire, 19 Feb. 2025

The result is a system with no moveable parts that can continuously or periodically remove dust from optics, solar panels, space suits, visors, radiators, windows, and other surfaces without wear and tear. —David Szondy, New Atlas, 1 Apr. 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