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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The package of 137 changes, which is scheduled for a City Council vote in April, would also ban new storage facilities on parts of El Cajon Boulevard and University Avenue and require some hotels and apartment complexes to upgrade pool heaters. David Garrick, San Diego Union-Tribune, 2 Mar. 2026 An all-electric, energy-efficient alternative to gas-burning furnaces, heat pumps are widely seen as the climate-friendly home heater of choice. Ben Christopher, Los Angeles Times, 1 Mar. 2026 In another story, Cara, a single parent, loses her apartment when her landlord refuses to fix her hot water heater. Max Klaver, Miami Herald, 27 Feb. 2026 The Wild entered the NHL’s three-week Olympic break on a heater, going 8-1-1 in their final 10 games before the pause. Jess Myers, Twin Cities, 27 Feb. 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 5 Mar. 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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