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naphthol n. 柰酚 柰酚 naphthol n 1: either of two phenols derived from naphthalene Naphthol \Naph"thol\, n. [Naphthalene -ol.] (Chem.)
Any one of a series of hydroxyl derivatives of naphthalene, analogous to phenol. In general they are crystalline substances with a phenol (carbolic) odor. [1913 Webster] {Naphthol blue}, {Naphthol orange}, {Naphthol yellow} (Chem.), brilliant dyestuffs produced from certain complex nitrogenous derivatives of naphthol or naphthoquinone. [1913 Webster]
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