| NOUN | substance | phenylalanine | an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults |
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| Meaning | An essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults; abundant in milk and eggs; it is normally converted to tyrosine in the human body. | |
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| Broader | essential amino acid | An amino acid that is required by animals but that they cannot synthesize |
| Spanish | fenilalanina | |
| Catalan | fenilalanina | |
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