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 译者晓琳,法学硕士(国际争议解决方向),擅长翻译各种与复杂跨境争议相关的法律文件。