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steam engine
noun
: an engine driven or worked by steam
specifically
: a reciprocating engine having a piston driven in a closed cylinder by steam
Examples of steam engine in a Sentence
Recent Examples on the Web
Carnot realized that the steam engine is, at its core, a machine that exploits the tendency for heat to flow from hot objects to cold ones.
—Zack Savitsky, Quanta Magazine, 13 Dec. 2024
The magical journey begins at nightfall at the Durango Depot, where travelers anxiously wait for the powerful steam engine to chug around the corner.
—Evie Carrick, Travel + Leisure, 2 Dec. 2024
When steam engines got more efficient in 19th century Britain, coal consumption grew.
—Noah Gordon, Vox, 1 Dec. 2024
The town has an historic steam engine locomotive getting closer to full restoration, and the eastern Wilson County town took another step towards being that steam engine's primary destination with its recent approval for a $1.6 million federal grant.
—Andy Humbles, The Tennessean, 29 Nov. 2024
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Word History
First Known Use
1751, in the meaning defined above
Dictionary Entries Near steam engine
Cite this Entry
“Steam engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/steam%20engine. Accessed 2 Jan. 2025.
Kids Definition
steam engine
noun
: an engine driven by steam
More from Merriam-Webster on steam engine
Nglish: Translation of steam engine for Spanish Speakers
Britannica.com: Encyclopedia article about steam engine
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