じょうか 浄化 Common word Wanikani level 53 LinksSentence search for 浄化Sentence search for じょうかKanji details for 浄 and 化Edit in JMdict Noun, Suru verb, Transitive verb1. purificationNoun, Suru verb, Transitive verb2. cleanup (e.g. of politics); purge Jreibun 兄は、大学院でおすい汚水をじょうか浄化びせいぶつ微生物について研究している。In graduate school, my older brother has been researching microorganisms that purify sewage. Discussions Log in to talk about this word.