The process or condition of losing pigment or color, especially in skin due to disease, injury, or treatment.
From depigment + -ation (noun suffix indicating a process or result). The -ation suffix transforms verbs into nouns describing actions or their outcomes, following Latin patterns.
Depigmentation is what happens in vitiligo, where patches of skin lose their color. But it also describes what happens when you chemically bleach something—the process where color gradually vanishes. It's the noun form of the color-loss action.
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