| 释义 |
melasma Path.|mɪˈlæzmə|
[mod.L., a. Gr. µέλασµα black spot, black dye, related to µελαίνειν to blacken, f. µελαν-, µέλας black.]
A morbid condition in which there is an excess of the black pigment in the human skin; spec. a skin disease differing from chloasma in the dark colour of the pigment. Also applied to a dark livid spot which occurs on the tibia of old persons.
1817Good Syst. Nosol. 489 Ecthyma... Melasma, Plenck, Linn. Vog. 1854Jones & Siev. Pathol. Anat. 164 The local discolorations, termed ‘melasma’. 1899Allbutt's Syst. Med. VIII. 701 Diffuse forms of pigmentation..which are sometimes described under the name of Melasma.
Hence meˈlasmic a., affected by, of the nature of, melasma.
1865Wilson Cutan. Med. 401 A peculiar discoloration of the eyeball, which we termed melanæmic or melasmic eye. |