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.
Timber Stoves prides itself not only on the quality of its heaters, but also on its practice of local manufacturing. Daniel Fusch, USA Today, 4 Nov. 2025 By morning, the heater was replaced, and the thermometer, which one employee said had reached at least a hundred and ten degrees, disappeared. Ava Kofman, New Yorker, 3 Nov. 2025 Most hot water heaters are tucked out of view in the basement or a utility closet. Brandee Gruener, Southern Living, 2 Nov. 2025 While lasers aren't the most energy-efficient tools, the beam vaporizes a mere pinhole of ice, meaning the drill uses far less total power than electric heaters. Samantha Mathewson, Space.com, 30 Oct. 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

Browse Nearby Words

Cite this Entry

“Heater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heater. Accessed 5 Nov. 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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