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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Broncos ownership has been on a heater the last two years, especially regarding contract extensions for core players. Joe Nguyen, Denver Post, 7 Sep. 2025 There aren’t very many tools on board the spacecraft, but one thing that JunoCam was equipped with was an on-board heater. Ethan Siegel, Big Think, 3 Sep. 2025 Just weeks after a previous UFO turned out to be a drifting hot water heater, their second mystery fizzled out just as oddly. Neetika Walter, Interesting Engineering, 2 Sep. 2025 And then the first pitch, middle-middle heater to Marte. Doug Padilla, Oc Register, 1 Sep. 2025 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 10 Sep. 2025.

Kids Definition

heater

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

More from Merriam-Webster on heater

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