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English definition of “fulcrum”

fulcrum

noun     /ˈfʊl.krəm/ (plural fulcrums or fulcra)
[C] specialized physics the point at which a bar, or something that is balancing, is supported or balances: A seesaw balances at its fulcrum.Machine parts [S] formal the main thing or person needed to support something or to make it work or happen: The fulcrum of the debate/argument is the individual's right to choose.Important and essential thingsInformation and messages
(Definition of fulcrum noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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