plagiocitriteMin.|pleɪdʒɪəʊˈsɪtraɪt| [Named 1879, f. plagio- + L. citrus citron + -ite1.] A hydrous sulphate of aluminium and other bases, found in monoclinic or triclinic lemon-yellow crystals. 1886in Cassell's Encycl.Dict.1892Dana Min. (ed. 6) 975.