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Definition of Malic acid
1. Noun. (organic compound) A colourless crystalline dicarboxylic acid, hydroxy-malonic acid, found in wine, apples and other fruit; it is converted to lactic acid by malo-lactic fermentation. ¹
¹ Source: wiktionary.com
Medical Definition of Malic acid
1. HOOC-CH2-CHOH-COOH; hydroxysuccinic acid;an acid found in apples and various other tart fruits; an intermediate in the tricarboxylic acid cycle, the glyoxylate cycle, and in a shuttle system. Synonym: monohydroxysuccinic acid. (05 Mar 2000)