衍化 yǎnhuà to evolve Origin Definitions Defs Strokes Stroke Words Sentences Sents 衍 yǎn noun to spread out (bound form) to spread out; to develop; to multiply or proliferate, as in 繁衍 fányǎn化 huà affixparticle [...-ize] Suffix appearing after nouns or adjectives that expresses a transformation into a certain state or quality, meaning "-ize" or "-ization"