Dictionary/火砕流かさいりゅうKasairyuuOther forms: 火災流火砕流 (Kasairyuu) is a Japanese noun meaning “pyroclastic flow”.Meaningsnounpyroclastic flowKanji in 火砕流火fire砕smash流currentRelated words流way消火extinguishing a fire流石as one would expect流れるto stream火傷burn流すto drain明かりlight火fire流行るto be popular火事fire花火fireworks一流first-class