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deactivate

verb [T]
 
 
/ˌdiˈæk.tɪ.veɪt/

Definition

to cause something to be no longer active or effective: All chemical weapons facilities will be deactivated.Not functioning deactivation
 
 
/ˌdiː.æk.tɪˈveɪ.ʃən/ US  /diˌæk-/ noun [U]
FunctioningPerforming a function
(Definition of deactivate verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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