Neutralize - Chuwa

Japanese: 中和 - ちゅうわ

〘Noun〙① (adjective) Character, emotions, qualities, etc., being correct and not one-sided. Being in harmony. Being moderately calm. Also, the state of being like that. Chuka. ※Kirei Mondo (around 1185-90) "When it is too cold, _one chokes , when it is too hot, _one rots . If the balance is not _right , _one loses balance. _Perhaps the recruiter _has _something ready." ※Warambesa (1660) "Pleasure cultivates the virtue of balance and is the way to avoid suffering." [Book of Rites - Doctrine of the Mean] ② (━suru) A reaction in which an acid and a base react in an equivalent ratio to produce salt and water. Both acids and bases are ionized in aqueous solution, so hydrogen ions and hydroxide ions combine to produce water. *From Shami Kaisong (1837-47): "Potass , <omitted> Arsem salt is also carbonate of potassium. However, it does not neutralize with carbonic acid." ③ (━suru) When things with different properties fuse together and lose their respective characteristics. To weaken the effectiveness of a substance by adding a different substance. *Autumn from Seishun (1905-06) by Oguri Fuha: "The land, sea, and temperature were all just at neutralization, and the atmosphere was so stiff that not even a gentle breeze moved." ④ In high-frequency amplifier circuits, preventing the circuit from self-oscillation by feedback.

Chu-ka ‥kwa [Neutralization]

〘Noun〙 (adjective) ("Ka" is the Chinese pronunciation of "Wa") = Chuwa (neutrality) ①※Jinno Shōtōki (1339-43) Part 1 "Light and clear things become the heavens, heavy and muddy things become the earth, and neutral spirits become people."

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

Japanese:

〘名〙① (形動) 性格や感情、性質などが、かたよらないで、正しいこと。調和のとれていること。程よくおだやかなこと。また、そのようなさま。ちゅうか。※貴嶺問答（1185‐90頃）「寒甚者噎(むせ)、熱過者爛(くさる)。令_二其調適不_一レ失_二中和_一者。勧誘人尤可_レ有_二用意_一事歟」※わらんべ草（1660）一「楽は中和の徳をやしなひ、きしつをすくふ道也」〔礼記‐中庸〕② (━する) 酸と塩基が当量の比で反応して塩と水を生ずる反応。酸も塩基も水溶液中では電離しているので、水素イオンと水酸イオンが結合して水を生ずるもの。※舎密開宗（1837‐47）内「剥篤亜斯(ポットアス)、〈略〉亜爾鮮(アルセム)塩も亦炭酸加里なり。然れども炭酸と熟く中和する者にあらず」③ (━する) 性質の異なるものが融合して、それぞれの特性を失うこと。異質の物質を加えて、ある物質の効力を弱めること。※青春（1905‐06）〈小栗風葉〉秋「陸と海と温度も丁度中和の時刻で、大気は凝って戦(そよ)との風も動かず」④ 高周波増幅回路において、帰還によって回路が自己発振するのを防ぐこと。