退化たいかtaika退たい化か退たい化かShow answer(Space)Suspend(@)退たい化か退たい化かtaikaNoun (common)Noun (common) (futsuumeishi)Noun (common)Noun/participle taking aux. verb するNoun or participle which takes the aux. verb suruNoun/participle taking aux. verb するdegeneration; retrogression退たい化か退たい化かtaikadegeneration; retrogressionWhat does 退化 mean in English?degeneration; retrogression(n, vs)Search the picture dictionary for 退化