maticinChem.|ˈmætɪsɪn| Also -ine. [f. matico + -in.] A bitter principle obtained from the leaves of the matico plant. 1844Hodges in Lond. etc. Philos.Mag. XXV. 206 A yellowish-brown extractive matter, maticine, remained.1871Watts tr.Gmelin's Handbk.Chem. XVIII. 234 Maticin.