bore evacuator
bore evacuator
[′bȯr i′vak·yə‚wād·ər] (ordnance)
A device placed on the tube of artillery weapons to force propellant gases to flow outward through the muzzle end of the bore from a cylindrical chamber around the gun tube; the chamber encloses a series of jets around the cannon tube through which the gases flow.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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