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Definition of Molisch's test
1. Noun. 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 acid.
Medical Definition of Molisch's test
1. A colour test for sugar, which condenses with alpha-naphthol or thymol in the presence of strong sulfuric acid, which converts the sugar to furfural derivatives. (05 Mar 2000)