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English definition of “flywheel”

flywheel

noun [C]     /ˈflaɪ.wiːl/ specialized
a heavy wheel in a machine that helps the machine to work at a regular speedMachinery and machinesHousehold equipment and domestic choresThe engine and engine partsEngines and motors
(Definition of flywheel noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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