de·pig·men·ta·tion /(ˌ)diˌpɪgmənˈteʃən, ˌmɛn-/
  de·pig·men·ta·tion /(ˌ)dɪˌpɪgmənˈteʃən, ˌmɛn-/ 名詞
  除色素,失色素,色素減退,除色素作用,失色素作用,褪色作用
  depigmentation
       n : absence or loss of pigmentation (or less than normal
           pigmentation) in the skin or hair [ant: pigmentation]