noun
a safety restraint in an automobile; the bag inflates on collision and prevents the driver or passenger from being thrown forward
• Hypernyms: ↑bag, ↑restraint, ↑constraint
• Part Holonyms: ↑car, ↑auto, ↑automobile, ↑machine, ↑motorcar
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noun : an automobile safety device consisting of a bag designed to inflate automatically especially in front of an occupant in case of collision to protect that person from pitching into solid parts (as the windshield or dashboard)
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an inflatable plastic bag mounted under the dashboard or on the back of the front seat of a car: it cushions the driver and passengers by inflating automatically in the event of collision.
[1830-40, for an earlier sense]
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a bag in a car that immediately fills with air if the car crashes, to protect the driver and passengers
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n. a safety device fitted inside a road vehicle, consisting of a cushion designed to inflate rapidly in the event of a collision and positioned so as to protect passengers from being flung against the vehicle's structure
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noun, pl ⋯ bags [count]
: a bag that fills with air to protect a driver or passenger when a vehicle crashes
Useful english dictionary. 2012.