Definitions for naphtholˈnæf θɔl, -θɒl, ˈnæp-
Random House Webster's College Dictionary
naph•tholˈnæf θɔl, -θɒl, ˈnæp-(n.)
either of two isomeric hydroxyl derivatives, C10H7OH, of naphthalene: used chiefly in dyes, drugs, perfumes, and insecticides.
Origin of naphthol:
either of two phenols derived from naphthalene
Either of two isomeric phenols derived from naphthalene; they are used in the preparation of dyes and many other compounds
any one of a series of hydroxyl derivatives of naphthalene, analogous to phenol. In general they are crystalline substances with a phenol (carbolic) odor