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
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Efficient, long-lasting diesel engines are more attractive to companies hauling goods and transporting large numbers of people. Michael Leamy, Discover Magazine, 2 Nov. 2024 The main propulsion diesel engine then shut down after the pumps lost electrical power. Michael Dorgan, Fox News, 17 Sep. 2024 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 See all Example Sentences for diesel engine 

Word History

First Known Use

1894, in the meaning defined above

Time Traveler
The first known use of diesel engine was in 1894

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 30 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

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