hyperphenylalaninemia

noun

hy·​per·​phe·​nyl·​al·​a·​nin·​emia

variants or chiefly British hyperphenylalaninaemia

-ˌfen-ᵊl-ˌal-ə-nə-ˈnē-mē-ə  -ˌfēn- 

: the presence of excess phenylalanine in the blood (as in phenylketonuria)

hyperphenylalaninemic adjective

or chiefly British hyperphenylalaninaemic

-ˈnē-mik