n.
Pronunciation: ' d ō -p ə , -( ˌ )pä
Function: noun
Etymology: International Scientific Vocabulary d ihydr o xy- + p henyl a lanine
Date: 1917
: a phenolic amino acid C 9 H 11 NO 4 occurring naturally (as in broad beans) or prepared synthetically (as from tyrosine) ― compare L-DOPA