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melanin
(english) Indole compounds which give skin its black, grey or brown color. In deeper layers of skin under turbid pigment-free layers, melanin may give rise to Tyndall blue colors. Distributed in melanophores. Melanin is formed from oxidized and polymerized end-products from the metabolism of tyrosine and allied phenolic compounds. (See also: pigmentation, melanophore, turbid)

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