[a. Gr. λεύκωσις, f. λευκοῦν to make white, f. λευκός white.] a. Pallor, whiteness (Syd. Soc. Lex., 1888). b. The process of becoming an albino; the condition of an albino. c. The formation of leucoma (Syd. Soc. Lex.).
1706. Phillips (ed. Kersey), Leucosis, a whitening of the Face, Teeth, or other Parts of the Body.
1842. Prichard, Nat. Hist. Man, 79. Symptoms of leucosis in their eyes, hair, and skin.
