英语词汇“naphthol”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	naphthol
释义	WordReference Random House Unabridged Dictionary of American English © 2024 naph•thol (naf′thôl, -thol, nap′-),USA pronunciation n. [Chem.] Chemistryeither of two isomeric hydroxyl derivatives, C₁₀H₇OH, of naphthalene (alpha-naphthol or 1-naphthol and beta-naphthol or 2-naphthol), white or yellowish crystals, with a phenolic odor, that darken on exposure to light: used chiefly in dyes, drugs, perfumes, and insecticides. Also called hydroxynaphthalene. naphth- + -ol¹ 1840–50 Collins Concise English Dictionary © HarperCollins Publishers:: naphthol /ˈnæfθɒl ˈnæp-/ n a white crystalline solid having two isomeric forms, alpha-naphthol, used in dyes, and beta-naphthol, used in dyes and as an antioxidant. Formula: C₁₀H₇OH Etymology: 19th Century: from naphtha + -ol¹
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