Path. [mod.L., a. Gr. ξηρασία dryness, also in sense below (Galen).] A disease of the hair characterized by excessive dryness.
1706. Phillips (ed. Kersey), Xerasia, a fault in the Hairs when they appear like Down, as it were sprinkled with Dust.
1896. trans. Balzacs César Birotteau, 152. To prevent xerasia and baldness.