an alloy that is about 55 percent copper, 40 percent zinc, and up to 3.5 percent manganese.
any of various alloys containing copper (55–60 per cent), zinc (35–42 per cent), and manganese (about 3.5 per cent)
- Manganese nodule
noun 1. (geology) a small irregular concretion found on deep ocean floors having high concentrations of certain metals, esp manganese
noun 1. Mineralogy. rhodonite or rhodochrosite.
noun 1. any of various steels containing manganese, especially one that has up to 14 percent manganese, used in work involving heavy strains and impacts. noun 1. any very hard steel containing manganese (11–14 per cent), used in dredger buckets, rock-crushers, railway points, etc
noun, Chemistry. 1. . noun, Chemistry. 1. a pink, water-soluble, usually tetrahydrate salt, MnSO 4 ⋅4H 2 O, used chiefly in fertilizers, paints, and varnishes.