- air compressed, especially by mechanical means, to a pressure higher than the surrounding atmospheric pressure.
Origin of compressed air
First recorded in 1660–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for compressed air
Our compressed-air reservoir was a soda-water fountain tank.
This hose was then connected to the compressed-air flasks in the submarine.
They fitted it with a compressed-air engine of eighty horse-power.Aircraft and Submarines
Willis J. Abbot.
The pipes and compressed-air reservoirs should be perfectly tight.Gas-Engines and Producer-Gas Plants
R. E. Mathot
The hoisting was done by a small Lidgerwood compressed-air hoister, and set up on an overhead platform across the tunnel.
- 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