crankshaft

noun

crank·​shaft ˈkraŋk-ˌshaft How to pronounce crankshaft (audio)
1
: a shaft driven by or driving a crank
2
: a shaft consisting of a series of cranks and crankpins to which the connecting rods of an engine are attached

Examples of crankshaft in a Sentence

Recent Examples on the Web
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Its cross-plane crankshaft is 3-ft 3.4-in-long (almost 1 m) for starters. New Atlas, 28 Apr. 2025 Tariffs An employee works on a vehicle crankshaft production line at a factory which produces engine parts in Binzhou, in eastern China’s Shandong province on March 14, 2025. Michele Luhn, CNBC, 24 Apr. 2025 The improvements are completed with a new crankshaft, rods, and pistons, as well as a revamped exhaust. New Atlas, 15 Mar. 2025 Built in 1922, the 4,350-square-foot structure once housed a machine shop that manufactured crankshafts. Brendel Hightower, USA TODAY, 10 Mar. 2025 See All Example Sentences for crankshaft

Word History

First Known Use

1854, in the meaning defined at sense 1

Time Traveler
The first known use of crankshaft was in 1854

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Cite this Entry

“Crankshaft.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crankshaft. Accessed 4 May. 2025.

Kids Definition

crankshaft

noun
crank·​shaft -ˌshaft How to pronounce crankshaft (audio)
: a shaft turning or driven by a crank or made up of a series of cranks

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