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Definition of Phenylacetic acid
1. Noun. (organic compound) The carboxylic acid C6H5-CH2-COOH that is a plant auxin ¹
¹ Source: wiktionary.com
Medical Definition of Phenylacetic acid
1. C6H5CH2COOH;an abnormal product of phenylalanine catabolism, appearing in the urine in individuals with phenylketonuria. (05 Mar 2000)