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

Definition of overheat

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

But instead of preventing an overheating, this time the recall was only to change how the car would handle if the inverter overheated. Los Angeles Times, "Toyota ordered to pay auto dealer $15.8 million in trial over Prius defects," 15 July 2019 Apple is recalling an undetermined number of 15-inch MacBook Pro laptops after learning of an issue that could cause the battery to overheat and pose safety risks. Chris Morris, Fortune, "Apple Is Recalling Some MacBook Pro Models. Here's How to Check If Yours Is Impacted," 21 June 2019 Apple said some older 15-inch MacBook Pro laptops are at risk of having batteries that may overheat and cause a fire. Lauren Goode, WIRED, "Apple Recalls MacBook Pro Batteries, Adding to Its Laptop Problems," 20 June 2019 Companies would invest more, and that in turn would boost productivity, allowing the economy to pick up pace over the long haul without overheating. Justin Lahart, WSJ, "Tax-Cut Split: Consumers Are Spending but Businesses Curb Their Enthusiasm," 9 Nov. 2018 The charging cables used in these charging stations are liquid cooled to allow this new level of power to be transferred without overheating. Bradley Berman, Popular Mechanics, "Audi Officially Unveils Its First EV, the E-Tron," 18 Sep. 2018 This denim jacket, which comes in both a men’s and women’s cut, has an otherworldly stretch to it, and gives warmth on windy, damp days without overheating on sunny ones. Sunset Staff, Sunset, "Drink Rum, Go Raft-Camping, and 9 More Things to See & Do This Week," 22 Jan. 2018 The safety commission says there’s an outside chance that laptops sold between September 2015 and February 2017 could overheat and potentially cause fires. Mike Murphy, Quartz, "Apple is recalling MacBook Pros that could catch on fire," 27 June 2019 Keep an eye out for symptoms of dehydration, sunburn, or overheating, like dizziness, weakness, or nausea, and be sure to drink plenty of water! Marisa Lascala, Good Housekeeping, "The 5 Best Toddler Swim Safety Tips, According to Swim Experts," 21 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'overheat.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of overheat

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

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Statistics for overheat

Last Updated

19 Jul 2019

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Time Traveler for overheat

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

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More Definitions for overheat



English Language Learners Definition of overheat

: to become too hot
: to cause (something) to become too hot


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

Kids Definition of overheat

: to heat too much : become too hot The engine overheated.

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More from Merriam-Webster on overheat

Rhyming Dictionary: Words that rhyme with overheat

Spanish Central: Translation of overheat

Nglish: Translation of overheat for Spanish Speakers

Britannica English: Translation of overheat for Arabic Speakers

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