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.
The Green Bay Packers were without sideline heaters during at least part of the first half of their frigid NFC North showdown with the Chicago Bears on Saturday night at Soldier Field. The Athletic Staff, New York Times, 21 Dec. 2025 To make things harder for the Packers, the heaters on their sideline have been inoperable for much of the game, according to Fox Sports. Jackson Thompson, FOXNews.com, 21 Dec. 2025 In extremely cold climates, an engine block heater can help your car start more easily on frigid mornings. Keenan Thompson, USA Today, 19 Dec. 2025 Keep scrolling to shop more of the best Super Saturday sales at Amazon’s outlet, from JBL wireless headphones to a mini portable heater. Isabel Garcia, PEOPLE, 19 Dec. 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 27 Dec. 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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