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

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Where the big diesel engine would normally sit is a squat platform that not only has storage potential for produce or gear, but its low profile affords the driver a better view from the cabin. Paul Ridden may 14, New Atlas, 14 May 2025 Lots of folks think the diesel engines are the way to go in these vans, but the V-10 is nearly as powerful and costs significantly less to maintain—you’ll just be buying a lot of gas because the engine is not known for being efficient. Bryan Rogala, Outside Online, 23 Apr. 2025 Scented wax melts produced three times more nanoparticles than candles, reaching similar levels of nanoparticles three nanometers or smaller as indoor stoves and diesel engines. Simon Spichak, Health, 5 Mar. 2025 Besides real estate, the family also holds interests in building materials, diesel engines, finance and packaging. Jonathan Burgos, Forbes, 3 Mar. 2025 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

Cite this Entry

“Diesel engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diesel%20engine. Accessed 22 May. 2025.

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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