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Definition of Phenylketonuria
1. Noun. A genetic disorder of metabolism; lack of the enzyme needed to turn phenylalanine into tyrosine results in an accumulation of phenylalanine in the body fluids which causes various degrees of mental deficiency.
Definition of Phenylketonuria
1. Noun. (medicine) A metabolic disorder in which individuals lack the liver enzyme phenylalanine hydroxylase (''PAH'') which is needed to metabolize the amino acid phenylalanine. ¹
¹ Source: wiktionary.com
Definition of Phenylketonuria
1. [n -S]
Medical Definition of Phenylketonuria
1.