| 单词 | naphthol |
| 释义 | naphthol /naf"thawl, -thol, nap"-/, n. Chem. either 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. [1840-50; NAPHTH- + -OL1] |
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