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.
Help your car beat the heat by maintaining proper fluid levels Your car's cooling system will work extra hard to make sure your vehicle doesn't overheat. Mariyam Muhammad, The Enquirer, 10 July 2025 The lightweight spacer fabric feels cozy on a chilly flight but won’t overheat you on arrival. Rosie Marder, Travel + Leisure, 9 July 2025 The update will also address concerns around battery overheating on a subset of Pixel 6a devices. Ewan Spence, Forbes.com, 8 July 2025 The signs of a dog that is overheating include unusually excess panting and rapid breathing, drooling, lethargy or disorientation, and if their gums are bright red. Dr. John De Jong, Boston Herald, 6 July 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 15 Jul. 2025.

More from Merriam-Webster on overheat

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