# phenylketonuria

> English word · Noun · IPA /fɛnaɪ̯lkiːtəˈnjʊə̯ɹɪ.ə/

## Definitions
1. A metabolic disorder in which individuals lack the liver enzyme phenylalanine hydroxylase (PAH) which is needed to metabolize the amino acid phenylalanine.

## Etymology
From phenylketone + -uria.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/phenylketonuria