硬化 [ㄧㄥˋ ㄏㄨㄚˋ; ying4 hua4]
  to harden
  hardening
  sclerosis
  fig. to become rigid or inflexible in opinions
  to ossify
  ◄ ►
  硬化
  こうか
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  nouns which may take the genitive case particle `no'
  antonym: 軟化
  hardening
  vulcanization
  vulcanisation
  sclerosis
  curing
  ◄ ►