‖ chloasma Med.
(kləʊˈæzmə)
Pl. chloˈasmata.
[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 discoloured 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. |