(n)a skin problem marked by the development (on the eyelids and neck and back) of irregular yellow nodules; sometimes attributable to disturbances of cholesterol metabolism
‖n. [ NL. See Xantho-, and -oma. ] (Med.) A skin disease marked by the development or irregular yellowish patches upon the skin, especially upon the eyelids; -- called also xanthelasma. [ 1913 Webster ]