vitiligo /ˌvɪtɪˈlaɪɡəʊ/ noun2 •The patchy loss of skin pigmentation.In the weeks that followed, I began to notice other people with vitiligo. On the streets, in the stores, in their cars. My God, they were everywhere! — 2015 •(no longer used) Alphos, a form of leprosy. formsvitiligos