Cooling - Reikyaku

Japanese: 冷却 - れいきゃく

〘noun〙① A drop in temperature. Also, to lower the temperature. [Kyoei Jukujiten (1874)]② A cooling of enthusiasm or excitement. Also, to calm enthusiasm or excitement. *Fukuzawa Yukichi, Autobiography (1899) - The origin of the "one-person, one-family economy" "It cools me down by making me wonder where such a person could be." ③ The act of leaving radioactive material to naturally reduce its radioactivity.

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙① 温度が下がること。また、温度を下げること。〔広益熟字典（1874）〕② 熱意・興奮がさめること。また、熱意・興奮をさますこと。※福翁自伝（1899）〈福沢諭吉〉一身一家経済の由来「そんな人が何処に在るかと云て私を冷却(レイキャク)するから」③ 放射性物質を放置して自然に放射能を減少させること。

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