Meconin
Pronunciation : Mec"o*nin
Part of Speech : n.
Etymology : [Cf. F. m?conine.] (Chem.)
Definition : Defn: A substance regarded as an anhydride of meconinic acid, existing in opium and extracted as a white crystalline substance. Also erroneously called meconina, meconia, etc., as though it were an alkaloid.
Source : Webster's Unabridged Dictionary, 1913