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.
For a daily driver, the third-generation Leaf is rather compelling, especially the S+, although the lack of heated front seats in that model might be too much of a deal-breaker, considering how important seat heaters are to EV efficiency in winter. Jonathan M. Gitlin, ArsTechnica, 12 Sep. 2025 But give me space to remind you that Nix never went on a heater this summer. Troy Renck, Denver Post, 11 Sep. 2025 Anyone who has taken an EV on a road trip knows that cranking up the A/C or heater can drain range quickly. Melanie Marshall, San Diego Union-Tribune, 10 Sep. 2025 There aren’t very many tools on board the spacecraft, but one thing that JunoCam was equipped with was an on-board heater. Ethan Siegel, Big Think, 3 Sep. 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 18 Sep. 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!