Thompson submachine gun
noun
a portable, .45-caliber, automatic weapon designed to be fired from the shoulder or hip.
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Also called Tommy gun.
Origin of Thompson submachine gun
1920–25; named after J. T. Thompson (1860–1940), American army officer who aided in its invention
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for Thompson submachine gun
Thompson sub-machine-gun
noun
trademark a .45 calibre sub-machine-gunAlso called: Tommy gun
Word Origin for Thompson sub-machine-gun
C20: after John T. Thompson (1860–1940), US Army Officer, its coinventor
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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