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diesel engine
noun
: an internal combustion engine in which air is compressed to a temperature sufficiently high to ignite fuel injected into the cylinder where the combustion and expansion actuate a piston
Examples of diesel engine in a Sentence
Recent Examples on the Web
Thor says the electric drive system doubles the available torque of a diesel engine, providing confident acceleration in highway traffic and sure, steady climbing in the mountains.
—New Atlas, 23 Sep. 2024
Pyle started answering strangers’ questions about their gas and diesel engines on JustAnswer as a side hustle in October 2006.
—Megan Sauer, CNBC, 7 Aug. 2024
Rather than using a diesel engine or overhead electricity, the ultra-light rail relies on a compact, eco-friendly battery chargeable within 10 minutes and capable of running for over 20 hours straight.
—Chris Gallagher, USA TODAY, 5 Sep. 2024
The main propulsion diesel engine automatically shut down after its cooling pumps lost power, and the ship lost steering.
—Joseph Wilkinson, New York Daily News, 15 May 2024
See all Example Sentences for diesel engine
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'diesel engine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
1894, in the meaning defined above
Dictionary Entries Near diesel engine
Cite this Entry
“Diesel engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diesel%20engine. Accessed 5 Oct. 2024.
Kids Definition
diesel engine
noun
: an internal-combustion engine in which air is compressed to make enough heat to ignite the fuel in the cylinder
More from Merriam-Webster on diesel engine
Britannica.com: Encyclopedia article about diesel engine
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