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English definition of “self-destruct”

self-destruct

verb [I] uk   /ˌself.dɪˈstrʌkt/ us  
If a machine or weapon self-destructs, it destroys itself, especially in a way that is planned: An investigation is underway after a missile self-destructed shortly after it was launched.Destroying and demolishingDamaging and spoiling (the/sb's) self-destruct button a characteristic in a person that makes them likely to fail because of their own actions: At least he reached the semifinal before hitting the self-destruct button.Dangerous and harmful
self-destruction
noun [U] uk   /ˌself.dɪˈstrʌk.ʃən/ us  
Destroying and demolishingDamaging and spoiling
self-destructive
adjective uk   /ˌself.dɪˈstrʌk.tɪv/ us  
He is rebellious, aggressive and at times self-destructive.Dangerous and harmful
(Definition of self-destruct from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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