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compressed air

American  

noun

  1. air compressed, especially by mechanical means, to a pressure higher than the surrounding atmospheric pressure.


compressed air British  

noun

  1. air at a higher pressure than atmospheric pressure: used esp as a source of power for machines

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of compressed air

First recorded in 1660–70

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

StarChase uses compressed air to launch a GPS tracker from a police vehicle onto a fleeing car.

From Los Angeles Times May 7, 2026

Vanguard also will include a floating structure on the surface of the water to transport compressed air, power the vessel, and allow for communication with the outside world.

From Barron's Oct. 29, 2025

"Another factor that comes into play is that we are powering this robot with compressed air," Qing says.

From Science Daily Dec. 4, 2024

A professional will inspect your ducts, assess debris levels, access the entire duct system, and use tools like brushes, compressed air and vacuuming to remove accumulated dirt, dust and debris.

From Seattle Times Feb. 26, 2024

As anyone who has used such a pump knows, compressed air grows swiftly hot, and the temperature below it would rise to some 60,000 Kelvin, or ten times the surface temperature of the Sun.

From "A Short History of Nearly Everything" by Bill Bryson

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