What does Air bag mean?

Air bag meaning in Medical Dictionary

The airbag is a vehicle safety product. Its restraining device designed to inflate quickly during a vehicle collision. It prevents the motorist and passenger from hitting the steering wheel or a window. The airbag was created to only inflate in moderate to extreme front crashes. Airbags are normally fashioned with the intention of extra security of those already restrained with a seatbelt. Most designs tend to be inflated through pyrotechnic means and can only be operated once.

Air bag meaning in General Dictionary

a safety discipline in a vehicle; the case inflates on collision and prevents the motorist or passenger from becoming thrown forward