英语词汇“melanotannic acid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	melanotannic acid
释义	> as lemmas melanotannic acid † melanotannic adj. [ < melano- comb. form + tannic adj.] Chemistry Obsolete melanotannic acid, a black substance derived from tannic or gallic acid (see quot. 1852²). ΚΠ 1852 C. Morfit Art of Tanning, Currying, & Leather-dressing (1853) 63 Melanotannic acid. 1852 W. T. Brande Dict. Sci., Lit. & Art (ed. 2) Suppl. 1385/1 Melanotannic Acid, the black substance formed by the action of excess of potassa upon tannic or gallic acid. extracted from melano-comb. form < as lemmas
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> as lemmas