/doh"peuh/ , n. Biochem.
an amino acid, C 9 H 11 NO 4 , formed from tyrosine in the liver during melanin and epinephrine biosynthesis: the L-dopa isomer is converted in the brain to dopamine. Cf. levodopa .
[ Dopa (1917), contr. of 3, 4- Dioxyphenylanin; see DI- 1 , OXY-, PHENYLALININE ]