meconine
/ˈmiːkənɪn/ /ˈmiːkəniːn/(also meconin) Chemistry
noun
A crystalline aromatic lactone, C10H10O4, that is one of the constituents of opium, and is also found in the root of goldenseal, Hydrastis canadensis; dimethoxyphthalide.
Origin
Mid 19th century; earliest use found in London and Edinburgh Philosophical Magazine. From French méconine from ancient Greek μήκων poppy + -ine.