manganese
/ˈmaŋɡəniːz
/noun [mass noun]
1The chemical element of atomic number 25, a hard grey metal of the transition series. Manganese is an important component of special steels and magnetic alloys. (Symbol: Mn) The list includes sodium, potassium, calcium, magnesium, manganese, iron, cobalt, copper, zinc, and molybdenum....
- Most Nebraska soils contain sufficient levels of potassium, magnesium, manganese, iron and sulfur for sunflower levels.
- The mineral elements most likely to be deficient in vineyards are nitrogen, potassium, phosphorus, zinc, boron, iron, manganese, and magnesium.
1.1The black dioxide of manganese as an industrial raw material or additive, especially in glass-making.
Origin
Late 17th century: via French from Italian manganese, alteration of medieval Latin magnesia (see magnesia).