Found 2 items, similar to submachine gun.
English → English (WordNet) Definition: submachine gun submachine gun n : machine gun that is a portable automatic firearm
English → English (gcide) Definition: submachine gun machine gun \machine gun\ n. A fully automatic rapid-firing rifle, which continues to fire bullets repeatedly as long as the trigger is depressed; lighter versions may be carried in the hands, and heavier versions may be mounted on a tripod, vehicle, or other mount. The lighweight versions are sometimes called a submachine gun . [PJC]