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.
One-touch ignition makes this a dummy-proof patio heater, which can heat up a nine-foot radius. Julia Harrison, Architectural Digest, 27 Oct. 2025 Squares throughout the city have alfresco seating with plenty of heaters and blankets. Sophie Friedman, AFAR Media, 27 Oct. 2025 Keeping homes warm using electric heaters this winter could be more costly than usual, particularly compared with other types of heating like natural gas and oil, federal estimates show. Jasmine Laws, MSNBC Newsweek, 26 Oct. 2025 Wedgewood had been on a heater dating back to late last season, with a 13-0-3 record in his previous 16 starts coming into Thursday’s showdown against the Carolina Hurricanes at Ball Arena. Kyle Newman, Denver Post, 24 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 29 Oct. 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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