minigun/ˈmɪniˌɡʌn/EtymologyFrom mini- + gun, so-called because General Electric designers scaled down the rotating-barrel 20 mm M61 Vulcan cannon for 7.62×51mm ammunition (in order to create a weapon with a higher and more reliable rate of fire).nounA machine gun with several rotating barrels, capable of firing several thousand rounds per minute.“You know, what I'm actually thinking- is, if the deathclaw event actually happens, will the minigun on [that] Vertibird still be a minigun, or will it be something completely different?”