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.

Naphthol blue, Naphthol orange, Naphthol yellow Chem., brilliant dyestuffs produced from certain complex nitrogenous derivatives of naphthol or naphthoquinone.


© Webster 1913.

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