atomic number 41

Thesaurus

Noun

1.atomic number 41 - a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbiumNb, niobiummetal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.columbium - a former name for niobiumcolumbite, niobite - a black mineral that is an ore of niobium and tantalum