internal combustion engine

noun

: a heat engine in which the combustion that generates the heat takes place inside the engine proper instead of in a furnace

Examples of internal combustion engine 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.
About 55,000 pounds of CO2 come from an internal combustion engine each year. Rob Lewallen, San Diego Union-Tribune, 1 Apr. 2025 To that end, Cadillac at least ramps up the sound deadening to improve NVH (noise, vibration, and harshness) that an internal combustion engine might otherwise drown out. Michael Teo Van Runkle, Ars Technica, 17 Mar. 2025 The faux manual transmission and its manufactured sounds to match acceleration and deceleration will be the noise of an EV, according to Car and Driver, and not the roar of an internal combustion engine. Erik Shilling, Robb Report, 12 Mar. 2025 Owners of electric vehicles can face a greater risk of being underwater than owners of traditional vehicles with an internal combustion engine. Susan Tompor, USA TODAY, 28 Jan. 2025 See All Example Sentences for internal combustion engine

Word History

First Known Use

1884, in the meaning defined above

Time Traveler
The first known use of internal combustion engine was in 1884

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Cite this Entry

“Internal combustion engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/internal%20combustion%20engine. Accessed 13 Apr. 2025.

Kids Definition

internal combustion engine

noun
: an engine in which the fuel is ignited within the engine cylinder instead of in an external furnace
Last Updated: - Updated example sentences
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