air valve
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noun
a device for controlling the flow of air, as from a pipe or tank.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for air valve
Historical Examples of air valve
It was the kind of door that shuts with an air-valve, and it closed gradually, tranquilly, like velvet; a perfect lady of a door.
Life's Minor CollisionsFrances Warner
He stopped the engines, opened the air-valve, and the great ship instantly began to settle quietly down.
With Airship and SubmarineHarry Collingwood
The professor opened the air-valve and the ship at once began to settle down.
The Log of the Flying FishHarry Collingwood
If now the air-valve be opened very slightly, an internal cone of the same blue colour makes its appearance.
air valve
noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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