衍化 [－－]

Jyutping jin5 faa3
Pinyin yǎn huà

Definitions (CC-CEDICT)
  1. to evolve (of ideas, designs, constructions etc)
  2. to develop and change
Definitions (Wiktionary)
  1. verb
    to evolve
    (syn.) 演化, 进化, 進化