ALL meanings of manganese
man·ga·nese
M m - noun manganese a hard, brittle, grayish-white, metallic element, an oxide of which, MnO 2 (manganese dioxide) is a valuable oxidizing agent: used chiefly as an alloying agent in steel to give it toughness. Symbol: Mn; atomic weight: 54.938; atomic number: 25; specific gravity: 7.2 at 20°C. 2
- noun manganese The chemical element of atomic number 25, a hard gray metal of the transition series. Manganese is an important component of special steels and magnetic alloys. 1
- noun manganese chemical element 1
- uncountable noun manganese Manganese is a greyish-white metal that is used in making steel. 1
- noun manganese a brittle greyish-white metallic element that exists in four allotropic forms, occurring principally in pyrolusite and rhodonite: used in making steel and ferromagnetic alloys. Symbol: Mn; atomic no: 25; atomic wt: 54.93805; valency: 1, 2, 3, 4, 6, or 7; relative density: 7.21–7.44; melting pt: 1246±3°C; boiling pt: 2062°C 1
- noun manganese a grayish-white, metallic chemical element, usually hard and brittle, which rusts like iron but is not magnetic: it is used in the manufacture of alloys of iron, aluminum, and copper: symbol, Mn; at. no., 25 -1
- noun manganese A metallic chemical element (symbol Mn) with an atomic number of 25. 0