Definition of naphthol in English:


Syllabification: naph·thol
Pronunciation: /ˈnafTHôl, ˈnap-, -THäl


  • A crystalline solid derived from naphthalene, used to make antiseptics and dyes.
    • Chemical formula: C10H7OH; two isomers, especially naphthalen-2-ol ( β-naphthol)
    More example sentences
    • Some of the dyes to which chromophores give a vibrant color are naphthol yellow, vat blue, congo red, and methylene blue.
    • Finally, it is mixed with naphthol to produce carbaryl.
    • Certain molecules such as 1 - naphthol, its derivatives, and carbazole show remarkable enhancement in their acidity in the excited singlet state.

More definitions of naphthol

Definition of naphthol in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day astrogation
Pronunciation: ˌastrəˈgāSHən
(in science fiction) navigation in outer space