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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
Cargo freighters and cruise ships, for instance, are often unable to connect to a port's electrical grid and must instead idle, relying on their onboard generators powered by massive diesel engines, which can lead to significant emissions and pollution.
—Leah Carroll, Newsweek, 1 Nov. 2024
Calvert has introduced bipartisan legislation that would reduce diesel engine emissions and voted to roll back the Biden administration's WOTUS rule.
—Daniel Moore, Axios, 3 Oct. 2024
Like going in and changing governor gain scheduling, for example, on a diesel engine would have a negative consequence on the emissions that [an] engine produces.
—Justine Calma, The Verge, 3 Oct. 2024
Luckily, the train arrives with a fresh breeze, ten carriages drawn by a diesel engine, the red of the Turkish flag.
—Kurt Johnson, Condé Nast Traveler, 24 Sep. 2024
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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 20 Nov. 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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