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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According to Stellantis, 70% of current RAM HD buyers opt for the 6.7-liter Cummins inline-six cylinder diesel engine. Sam Abuelsamid, Forbes, 7 Jan. 2025 However, the vehicles that ferry our kids to school also tend to be terrible in terms of emissions, due to their aging diesel engines. Umair Irfan, Vox, 28 Dec. 2024 There's a diesel engine that offers similar power or for those after further oomph, there's also a 190 bhp option that's mated to a 4WD system. Matthew MacConnell, Forbes, 6 Jan. 2025 China’s naval production now includes everything from gas turbine and diesel engines to shipboard weapons, electronic systems, submarines, surface combatants, and unmanned systems. Seth G. Jones, Foreign Affairs, 2 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 22 Jan. 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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