Dictionary/化成かせいKasei化成 (Kasei) is a Japanese noun meaning “change, transformation”.Meaningsnoun, suru verb, transitive verb, intransitive verbchange; transformationKanji in 化成化change成turn intoRelated words成る程I see行き成りabruptly可也considerably成功success成すto form同化assimilation軟化softening完成completion変化change成長growth老化ageing成立formation