ひかぎゃくへんか 非可逆変化 LinksSentence search for 非可逆変化Sentence search for ひかぎゃくへんかKanji details for 非, 可, 逆, 変 and 化Edit in JMdict Noun1. irreversible changeSee also 不可逆変化 Discussions Log in to talk about this word.