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.
Dealers will replace the engine block heater element and inspect the electrical cord free of charge, or replace it if necessary. Natalie Neysa Alund, USA Today, 4 June 2025 The Red Sox would surely take a similar heater now. Mac Cerullo, Hartford Courant, 1 June 2025 Rantanen’s spectacular six-game heater was the only time this team looked truly dangerous. Mark Lazerus, New York Times, 30 May 2025 The portable heater is a game-changer for winter camping. Alice Bennett, Travel + Leisure, 29 May 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 8 Jun. 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!