firearmglossary / FIREARM firearm. A weapon that expels a projectile (such as a bullet or pellets) by the combustion of gunpowder or other explosive. [Cases: Weapons8. C.J.S. Weapons §§ 13–15.] 词条贡献者 译员雪梅,国际知名法学院劳动法专业,专注翻译各种与劳动雇佣有关的法律文件。