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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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 The problem is that burning hydrogen in a natural gas turbine is like putting gasoline in a diesel engine. David Szondy, New Atlas, 14 Dec. 2024 While ferries don't have the same charging requirements as heavier ships, many companies are building redundancies into their crafts to ensure longer trips and less time at the charging station: Many ferries are powered by both batteries and diesel engines that can be used to offset one another. Leah Carroll, Newsweek, 1 Nov. 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 10 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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