English

Definition of flywheel noun from the Oxford Advanced Learner's Dictionary

 

flywheel

 noun
noun
BrE BrE//ˈflaɪwiːl//
 
; NAmE NAmE//ˈflaɪwiːl//
 
 
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a heavy wheel in a machine or an engine that helps to keep it working smoothly and at a steady speed
See the Oxford Advanced American Dictionary entry: flywheel