depigmentation
- n absence or loss of pigmentation (or less than normal pigmentation) in the skin or hair
- They are also supposed to spot and treat such conditions as acne, vitiligo (patchy depigmentation of the skin), psoriasis, and conditions that may contribute to hair loss.
- The blotching spread until it brought about the depigmentation suddenly observed by Will White after his bath.
- Loomis surmises that the yellow races may have developed their coloration after having gone through the white-race depigmentation phase.