submachine gun
US /ˈsʌb.mə.ʃiːn ˌɡʌn/
UK /ˈsʌb.mə.ʃiːn ˌɡʌn/

1.
submetralhadora, metralhadora de mão
a light automatic gun firing pistol-caliber ammunition, designed for close-quarters combat.
:
•
The police officer carried a submachine gun during the raid.
O policial carregava uma submetralhadora durante a batida.
•
The soldiers were equipped with rifles and submachine guns.
Os soldados estavam equipados com rifles e submetralhadoras.