Meaning of “air bag” in the English Dictionary

american-english dictionary

"air bag" in American English

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air bagnoun [ C ]

us /ˈeər ˌbæɡ/

a device in a vehicle that very quickly fills with air in order to protect the driver or a passenger from injury when the vehicle is involved in an accident

(Definition of “air bag” from the Cambridge Academic Content Dictionary © Cambridge University Press)