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English definition of “mechanism”

mechanism

noun [C] uk   /ˈmek.ə.nɪ.zəm/ us  

mechanism noun [C] (MACHINE PART)

C1 a part of a machine, or a set of parts that work together: These automatic cameras have a special focusing mechanism.

mechanism noun [C] (SYSTEM)

C1 a way of doing something that is planned or part of a system: The mechanism for collecting taxes needs revising.

mechanism noun [C] (BEHAVIOUR)

a part of your behaviour that helps you to deal with a difficult situation: She's actually rather insecure, and her rudeness is just a defence mechanism.
(Definition of mechanism from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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