1. A hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
   "Manganese is added to steel to increase its strength";
   - Mn, atomic number 25

Derived forms: manganeses

Type of: metal, metallic element

Part of: hausmannite, manganite, psilomelane, pyrolusite, rhodochrosite

Encyclopedia: Manganese, West Virginia