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Definition of Fehling's solution
1. Noun. A liquid solution of copper sulfate and potassium tartrate and sodium hydroxide that is used to test for sugar in the urine; solution turns reddish when sugar is present.
Generic synonyms: Solution
Medical Definition of Fehling's solution
1. An alkaline copper tartrate solution formerly used for detection of reducing sugars. Synonym: Fehling's reagent. (05 Mar 2000)