Phenylalanine

Origin

From phenyl and alanine.

Full definition of phenylalanine

Noun

1. (amino acid) 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.

Related terms

• phenylalanyl

Synonyms

• Phe