Thompson submachine gun(redirected from Thompson sub machine gun)
Also found in: Thesaurus, Encyclopedia.
Related to Thompson sub machine gun: Browning automatic rifle
Thompson submachine gun
A .45-caliber submachine gun having a wooden stock and a box or drum magazine.
[After John Taliaferro Thompson (1860-1940), American army officer.]
Thomp′son submachine′ gun`
a.45-caliber automatic weapon designed to be fired from the shoulder or hip.Also called Tommy gun.
[1920–25; after John T. Thompson (1860–1940), American army officer who aided in its invention]