Compressed-air meaning

The definition of compressed air is air that is under pressure greater than atmospheric pressure.

An example of compressed air is air used for braking systems on railroads.

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Air under greater than atmospheric pressure, especially when used to power a mechanical device or to provide a portable supply of oxygen.
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Air held under pressure in a container: the force generated when the air is released is used to operate machines, tools, etc.
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Air under greater than atmospheric pressure, especially when used to power a mechanical device or to provide a portable supply of oxygen.
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Air which has been reduced in volume and increased in pressure; it is used to power machinery etc.
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