narcotine
/ˈnɑːkətɪn/Chemistry
noun
Either of two stereoisomeric crystalline alkaloids of the formula C22H23NO7; specifically (more fully α-narcotine) the one occurring in opium and formerly used medicinally.
Origin
Early 19th century; earliest use found in Monthly Gazette Health. From French narcotine from narcot- (in narcotique) + -ine.