air bag

noun

1. a safety device in a car, consisting of a bag that inflates automatically in an accident and prevents the passengers from being thrown forwards
2. 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

Example Sentences

It had an internal air-bag or ballonet whose capacity was one-fifth that of the envelope.

From Project Gutenberg

Now when this open air-bag, of considerable area, is pulled downwards it causes a very considerable disturbance in the air.

From Project Gutenberg

Further, by compressing the air inside the air bag, the rate of ascent or descent could be regulated.

From Project Gutenberg

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.

From Project Gutenberg

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.

From Project Gutenberg