Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
phenylalanine | Yes | No | No | No |
essential amino acid | Yes | No | No | No |
phenylalanine (noun) | essential amino acid (noun) |
---|---|
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 | an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet |