English

Definition of storm window noun from the Oxford Advanced Learner's Dictionary

 

storm window

 noun
noun
BrE BrE//ˈstɔːm wɪndəʊ//
 
; NAmE NAmE//ˈstɔːrm wɪndoʊ//
 
 
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an extra window that is fitted to a window of a house to give protection from bad weather
See the Oxford Advanced American Dictionary entry: storm window