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WordReference Random House Unabridged Dictionary of American English © 2024do•pa (dō′pə),USA pronunciation n. [Biochem.]- Biochemistryan amino acid, C9H11NO4, formed from tyrosine in the liver during melanin and epinephrine biosynthesis: the L-dopa isomer is converted in the brain to dopamine. Cf. levodopa.
- German Dopa (1917), contraction of 3, 4- Dioxyphenylanin; see di-1, oxy-, phenylalinine
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