heater

noun

heat·​er ˈhē-tər How to pronounce heater (audio)
1
: one that heats
especially : a device that imparts heat or holds something to be heated
2

Examples of heater in a Sentence

Recent Examples on the Web
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Ellison, who is fifty-five, was slouched behind the wheel with the heater blowing on him. Burkhard Bilger, New Yorker, 29 June 2026 As for the seat heater, if power and wiring are intact, the heating element has likely failed, usually as an open circuit. John Paul Senior Manager Public Affairs and Traffic Safety Aaa Northeast, Hartford Courant, 27 June 2026 How many more times will there only be one of them in the field — or none, if someone goes on a heater and takes out Sinner before Djokovic gets to him. Ava Wallace, New York Times, 27 June 2026 Chamber temperatures stabilized at approximately 45 degrees C despite the absence of an active chamber heater. Michael Lydick, PC Magazine, 27 June 2026 See All Example Sentences for heater

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of heater was in the 15th century

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Cite this Entry

“Heater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heater. Accessed 1 Jul. 2026.

Kids Definition

heater

noun
heat·​er ˈhēt-ər How to pronounce heater (audio)
: a device that heats or holds something to be heated

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