質量保存の法則 しつりょうほぞんのほうそく Meanings Noun law of conservation of mass Kanji 質 quality. Read as シツ. 量 quantity. Read as リョウ. 保 keep. Read as ホウ. 存 exist. Read as ソン. 法 law. Read as ホウ. 則 rule. Read as ソク. Jinuma: Japanese Dictionary · Word lists