生理活性物質 せいりかっせいぶっしつ Meanings Noun biologically active substance Kanji 生 life. Read as セイ. 理 reason 活 active. Read as カツ. 性 nature. Read as セイ. 物 thing. Read as ブツ. 質 quality. Read as シツ. Jinuma: Japanese Dictionary · Word lists