Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: phenylalanine  ,fee,nI-ul'a-lu,neen or ,fe-n(u)l'a-lu,neen
  1. 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

Type of: essential amino acid

Encyclopedia: Phenylalanine