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*naphthol*

 ลองค้นหาคำในรูปแบบอื่น: naphthol, -naphthol-
ค้นหาอัตโนมัติโดยใช้naphthol
WordNet (3.0)
(n)an isomer of naphthol used in dyes
(n)biochemical indicator of the presence of carbohydrates in a solution; if carbohydrates are present a violet ring is formed by reaction with alpha-naphthol in the presence of sulfuric acidSyn.Molisch's test, Molisch reaction, Molisch test
(n)an isomer of naphthol used in rubber as an antioxidant
(n)either of two phenols derived from naphthalene
Collaborative International Dictionary (GCIDE)

{ n. Also }. [ Benzoin + naphthol. ] (Chem.) A white crystalline powder used as an intestinal antiseptic; beta-naphthol benzoate. [ Webster 1913 Suppl. ]

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 ]

EDICT JP-EN Dictionary
[nafuto-ru](n) naphthol[Add to Longdo]
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