atomic number 25

Thesaurus

Noun

1.atomic number 25 - a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many mineralsmanganese, Mnmetal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.hausmannite - a mineral consisting of manganese tetroxide; a source of manganesemanganite - a black mineral consisting of basic manganese oxide; a source of manganesepsilomelane - a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganesepyrolusite - a mineral consisting of manganese dioxide; an important source of manganeserhodochrosite - a mineral consisting of manganese carbonate; a source of manganese