crankcase

noun

crank·​case ˈkraŋk-ˌkās How to pronounce crankcase (audio)
: the housing of a crankshaft

Examples of crankcase in a Sentence

Recent Examples on the Web
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The crankcase is the central, lower housing of the engine. Greta Cross, USA Today, 1 May 2026 Clean the area around the oil cap to prevent debris from getting inside the crankcase, then remove the cap. Karen Brewer Grossman, Southern Living, 5 Jan. 2026 Among other components, the power train incorporates new injectors, a tilted cylinder, a new starting system and a crankcase design that significantly reduces mechanical and drive belt noise. Josh Max, Forbes, 5 Nov. 2024 Related Stories The Best Zero-Turn Mowers of 2023 The Best Tools of 2023 Test Run the Mower Check the mower’s dip stick to be sure that there’s sufficient oil in the crankcase. Roy Berendsohn, Popular Mechanics, 17 Mar. 2023 See All Example Sentences for crankcase

Word History

First Known Use

circa 1878, in the meaning defined above

Time Traveler
The first known use of crankcase was circa 1878

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Cite this Entry

“Crankcase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crankcase. Accessed 7 Jul. 2026.

Kids Definition

crankcase

noun
crank·​case ˈkraŋk-ˌkās How to pronounce crankcase (audio)
: the covering of a crankshaft

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