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Từ điển Oxford Advanced Learner 8th
melanin
mel·anin [melanin melanins] BrE [ˈmelənɪn] NAmE [ˈmelənɪn] noun uncountable (technical)
a dark substance in the skin and hair that causes the skin to change colour in the sun's light
Word Origin:
mid 19th cent.: from Greek melas, melan- ‘black’ + ↑-in.
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