sə̇ˈnäməˌnēn, -_nə̇n noun
( -s )
Etymology: sinomen- (from New Latin Sinomenium, genus name of the woody vine Sinomenium acutum ) + -ine
: a crystalline alkaloid C 19 H 23 NO 4 structurally related to thebaine but obtained from various eastern Asiatic plants (as Sinomenium acutum ) of the family Menispermaceae