phenylalanine

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English[edit]

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Etymology[edit]

From phenyl and alanine.

Noun[edit]

phenylalanine (countable and uncountable, plural phenylalanines)

  1. (biochemistry) An essential amino acid C9H11NO2 found in most animal proteins; it is essential for growth; the inability to metabolize it leads to phenylketonuria; it is a constituent of aspartame.

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