Manganium vs. Manganese

Manganiumnoun

(obsolete) manganese

Manganesenoun

A metallic chemical element (symbol Mn) with an atomic number of 25.

Manganiumnoun

Manganese.

Manganesenoun

An element obtained by reduction of its oxide, as a hard, grayish white metal, fusible with difficulty (melting point 1244° C), but easily oxidized. Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc. Symbol Mn. Atomic number 25; Atomic weight 54.938 [C=12.011].

Manganesenoun

a hard brittle gray polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals

Manganese

Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard brittle silvery metal, often found in minerals in combination with iron.