overheat

verb

over·​heat ˌō-vər-ˈhēt How to pronounce overheat (audio)
overheated; overheating; overheats

transitive verb

1
: to heat to excess
2
: to stimulate or agitate unduly

intransitive verb

: to become heated beyond a safe or desirable point

Examples of overheat in a Sentence

I overheated the food in the microwave. Be careful not to overheat the engine.
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.
Testers Say: Testers love the flattering, comfortable pajamas that keep them dry and prevent overheating throughout the night. Health Editorial Team, Health, 14 Mar. 2025 Casper’s cooling line claims to help what the company identified as a key barrier to a good night’s sleep—overheating. Audrey Lee, Architectural Digest, 11 Mar. 2025 Watch out for overheating, short circuits, and faulty motors. Shivani Vyas, Better Homes & Gardens, 11 Mar. 2025 Amazon has an affordable essential oils diffuser that has seven different LED light colors, multiple mist nebulizers and a safety auto switch built-in, so your diffuser doesn’t overheat. Christopher Murray, Fox News, 8 Mar. 2025 See All Example Sentences for overheat

Word History

First Known Use

14th century, in the meaning defined at transitive sense 1

Time Traveler
The first known use of overheat was in the 14th century

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Cite this Entry

“Overheat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overheat. Accessed 28 Mar. 2025.

More from Merriam-Webster on overheat

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