火砕流 かさいりゅう Meanings Noun pyroclastic flow Kanji 火 fire. Read as カ. 砕 smash. Read as サイ. 流 flow. Read as リュウ. Words containing 火砕流 大火砕流 (だいかさいりゅう) large pyroclastic flow Word lists Geology Jinuma: Japanese Dictionary · Word lists