automatic weapon

Thesaurus

Noun

1.

automatic weapon - a firearm that reloads itself and keeps firing until the trigger is released automatic firearm, automatic gun autoloader, self-loader - a firearm that reloads itself automatic pistol, automatic - a pistol that will keep firing until the ammunition is gone or the trigger is released automatic, automatic rifle, machine rifle - light machine gun machine gun - a rapidly firing automatic gun (often mounted)