Definition of firestorm noun from the Oxford Advanced Learner's Dictionary

 

firestorm

 noun
noun
BrE BrE//ˈfaɪəstɔːm//
 
; NAmE NAmE//ˈfaɪərstɔːrm//
 
 
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a very large fire, usually started by bombs, that is not under control and is made worse by the winds that it causes (figurative) a firestorm of criticism
See the Oxford Advanced American Dictionary entry: firestorm