air jacket
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noun
an envelope of enclosed air around part of a machine, as for checking the transmission of heat.
British. life jacket.
Nearby words
air hole, air horn, air hostess, air hunger, air injection, air jacket, air kiss, air lance, air lane, air layer, air layering
Origin of air jacket
First recorded in 1905–10
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for air jacket
A is the calorimetric tube, B the air-jacket and L the gauge.
British Dictionary definitions for air jacket
air jacket
noun
an air-filled envelope or compartment surrounding a machine or part to reduce the rate at which heat is transferred to or from itCompare water jacket
a less common name for life jacket
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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