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reaction

noun [U] (NO CHANGE)
 
 
/riˈæk.ʃən/ disapproving

Definition

the belief or principle that there should be no social or political change, and the attempt to stop such change from happening: We must not allow reaction to stand in the way of progress.Custom, tradition and conformity
(Definition of reaction noun (NO CHANGE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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