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.
Plus, the breathable fabric also keeps your feet from overheating. Melody Kazel, PEOPLE, 18 Sep. 2025 These areas are not experiencing the same correction that pandemic boomtowns across the South are now facing after years of overheating, and demand for the limited supply available remains strong, keeping prices up. Giulia Carbonaro, MSNBC Newsweek, 17 Sep. 2025 Accelerometers pick up bearing wear, infrared cameras flag overheated motors, ultrasonic microphones catch leaks, and oil sensors detect contamination. Srishti Gupta, Interesting Engineering, 16 Sep. 2025 The microwave filter is crucial for protecting your microwave's internal parts from gunk getting stuck or the fans from overheating. Daley Quinn, Southern Living, 12 Sep. 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 22 Sep. 2025.

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