Definition of decommission verb from the Oxford Advanced American Dictionary

 

decommission

 verb
verb
NAmE//ˌdikəˈmɪʃn//
 
decommission somethingVerb Forms present simple I / you / we / they decommission
 
he / she / it decommissions
 
past simple decommissioned
 
-ing form decommissioning
 
 
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to officially stop using weapons, a nuclear power station, etc.
See the Oxford Advanced Learner's Dictionary entry: decommission