Manganese

mang-ga-nēz′, or mang′ga-nēz, n. a hard and brittle metal of a grayish-white colour, somewhat like iron.— adjs. Manganē′sian , Manganē′sic , Mangan′ic , Mang′anous ; Manganif′erous .— n. Mang′anite , gray ore of manganese, used in gla manufacture. [O. Fr. manganese , a material used in making gla , prob. from It. and cog. with magnesia .]