naphtholEnglishOxford Dictionary of Englishnaphthol /ˈnafθɒl / ▸ noun [mass noun] Chemistry a crystalline solid derived from naphthalene, used to make antiseptics and dyes. Chemical formula: C10H7OH; two isomers, especially naphthalen-2-ol (β-naphthol).
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EnglishOxford Dictionary of English