piebald /pī″bôld/ [L, pica, magpie; ME, balled, smooth] , 1. having patches of white hair or skin caused by an absence of melanocytes in those nonpigmented areas. It is a hereditary condition. Compare albinism, vitiligo. 2. having two colors: black and white or brown and white; mottled. −piebaldism, n.
