fireball
noun [ C ] uk/ˈfaɪə.bɔːl/ us/ˈfaɪr.bɑːl/
（尤指猛烈爆炸产生的）火球
a large ball of fire, especially one caused by a very powerful explosion
Witnesses reported seeing a huge orange fireball as the oil refinery exploded. 目击者报告说炼油厂发生爆炸时他们见到了一个巨大的橙红色火球。