megabasiteMin.|mɛgəˈbeɪsaɪt| [a. G. megabasit (Breithaupt 1852), f.Gr. µέγα-ς great + βάσι-ς base: see -ite.] A synonym of hübnerite. The name is meant to express the fact that the mineral contains more basic matter than wolframite. 1868Dana Syst.Min. (ed. 5) 604.