| 释义 |
melanin Chem. and Phys.|ˈmɛlənɪn|
[f. Gr. µελαν-, µέλας black + -in1.]
The black pigment in the retina, choroid, hair, epidermis, etc. of coloured races of man or melanic varieties of animals. Also, the black pigment developed in certain diseases. Also attrib. and Comb.
1843Owen Lect. Invertebr. Anim. 355 It [the secretion in the ink-bag of a cephalopod] is affirmed by some chemists to contain a peculiar animal principle, which Vizio has termed ‘melanine’. 1855tr. C. Wedl's Pathol. Histol. (Syd. Soc.) ii. i. 118 Black pigment (melanin) appears in the form of reddish brown molecules. 1871Watts tr. Gmelin's Handbk. Chem. XVIII. 417 Melanin. L. Gmelin's Black Pigment of the Eye. 1874Barker tr. Frey's Histol. & Histochem. 53 We must be on our guard, however, not to confound the ordinary black pigment found in the human lungs with melanin. 1898P. Manson Trop. Dis. i. 2 Melanæmia and malarial pigmentation are fully accounted for by the melanin-forming property of the plasmodium. Ibid. 6 The melanin particles, so characteristic of the malaria germ. |