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air bag
noun
- a safety device in a car, consisting of a bag that inflates automatically in an accident and prevents the passengers from being thrown forwards
- one of a number of large inflatable bags comprising part of a spacecraft's landing system, enabling the craft to come to rest through a series of bounces
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Example Sentences
It had an internal air-bag or ballonet whose capacity was one-fifth that of the envelope.
Now when this open air-bag, of considerable area, is pulled downwards it causes a very considerable disturbance in the air.
Further, by compressing the air inside the air bag, the rate of ascent or descent could be regulated.
When the air has been changed to carbonic-acid gas, he must come to the surface to empty his air-bag and drink it full again.
Our air-bag has to be emptied and filled so often that we cannot live under water long at a time, as a frog does.
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