Med. Pl. chloasmata. [f. Gr. χλοάζειν to become green (as if a. Gr. *χλόασμα).] An affection of the skin, characterized by yellowish-brown or blackish patches, either accompanied with a fungous growth, or due simply to deposits of pigment in the epidermal cells. b. pl. These discolored patches.
1876. Duhring, Dis. Skin, 41. Chloasmata … occasioned by the presence of an excessive amount of the normal pigment. Ibid., 338. Chloasma is a pigmentary affection.
