oxalacetic acid n 1: an acid formed by oxidation of maleic acid (as in metabolism of fats and carbohydrates) [syn: {oxalacetic acid}, {oxaloacetic acid}]
oxalacetic acid \oxalacetic acid\ n. (Chem.) A dicarboxylic acid ({HO.CO.CO.CH2.CO.OH}). [WordNet 1.5]