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
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Stardrum’s brushwork, sounding like a steam engine at low speed, keeps things from falling apart, but doesn’t put anything together, either. Reed Jackson, SPIN, 3 July 2026 In 1865, economist William Stanley Jevons observed that as steam engines became more coal-efficient, England’s total coal consumption skyrocketed. Vaibhav Dani, Forbes.com, 30 June 2026 In 1865, William Stanley Jevons observed that when the Watt steam engine made coal use more efficient—decreasing the amount required to a task—coal consumption actually skyrocketed. Sasha Rogelberg, Fortune, 17 June 2026 This phenomenon is known as the Jevons paradox, named after William Stanley Jevons, a 19th-century British economist who correctly predicted that the steam engine’s more efficient use of coal would, counterintuitively, cause demand for coal to rise. Rogé Karma, The Atlantic, 11 June 2026 See All Example Sentences for steam engine

Word History

First Known Use

1751, in the meaning defined above

Time Traveler
The first known use of steam engine was in 1751

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Cite this Entry

“Steam engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/steam%20engine. Accessed 6 Jul. 2026.

Kids Definition

steam engine

noun
: an engine driven by steam

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