Definition of manganese in English:



  • 1The 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.

    • ‘Also, urinalysis showed high levels of potassium, manganese, and calcium.’
    • ‘Offshore oil and gold are exploited, and there are deposits of iron ore, copper, manganese, uranium, silica, and titanium.’
    • ‘And it provided vital information on lime requirement, phosphorus, potash, magnesium, copper, manganese and zinc.’
    • ‘These changes were associated with large increases in phosphorus, potassium, zinc, iron, manganese, and copper.’
    • ‘Unlike metals such as iron, copper, magnesium, manganese, and nickel, gold has no natural biological role.’
    • ‘Cobalt, nickel and manganese are metals with iron-like properties.’
    • ‘Carbon-manganese steels are in general use for the rails; too much carbon makes the steel brittle, too much manganese makes it hard to weld.’
    • ‘Uptake of aluminum, iron and manganese has not been as extensively studied in algae.’
    • ‘Less abundant elements, which are equally necessary for life, include calcium, manganese, iron, and iodine.’
    • ‘Nitrates and trace metals, such as iron, manganese, copper, and zinc, should be kept to a minimum.’
    • ‘Daily intake of small amounts of manganese is needed for growth and good health in children.’
    • ‘Groundwater also contains salts of calcium, magnesium, iron, and manganese.’
    • ‘The mineral elements most likely to be deficient in vineyards are nitrogen, potassium, phosphorus, zinc, boron, iron, manganese, and magnesium.’
    • ‘By far the most important use of manganese is in the production of alloys, primarily steel alloys.’
    • ‘They include magnesium, calcium, iron, sulfur, molybdenum, boron, zinc, copper and manganese.’
    • ‘Water from some sites contained manganese, often a component of the mineral-rich water discharged from vents.’
    • ‘Most Nebraska soils contain sufficient levels of potassium, magnesium, manganese, iron and sulfur for sunflower levels.’
    • ‘The oxygens which were originally attached to the manganese are still attached in the neutral complex.’
    • ‘These alloys usually contain manganese as an impurity because wrought metal scrap is used in preparing them.’
    • ‘The list includes sodium, potassium, calcium, magnesium, manganese, iron, cobalt, copper, zinc, and molybdenum.’
    1. 1.1The black dioxide of manganese as an industrial raw material or additive, especially in glassmaking.


Late 17th century: via French from Italian manganese, unexplained alteration of medieval Latin magnesia (see magnesia).