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.
Resting the dress for 30 minutes in front of a heater. Lucy Notarantonio, MSNBC Newsweek, 21 July 2025 The interior eschews unnecessary heft by leaving out any use of undercoating, a heater, and backrests on the rear seats. Viju Mathew, Robb Report, 14 July 2025 Some of the items cited by the city included work on an exterior air-conditioning unit, an electrical panel plug to serve a food trailer for The Trap and an inoperable and disconnected wall heater. Graham Womack, Sacbee.com, 11 July 2025 However, Glasnow responded, jamming Jake Bauers with a sinker for a pop out before blowing Joey Ortiz away with an elevated 96 mph heater. Los Angeles Times, 9 July 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 21 Aug. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!