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

 

airbag

 noun
noun
BrE BrE//ˈeəbæɡ//
 
; NAmE NAmE//ˈerbæɡ//
 
Parts of a car
 
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a safety device in a car that fills with air if there is an accident, to protect the people in the car See related entries: Parts of a car
See the Oxford Advanced American Dictionary entry: airbag