atomic number 41

English Thesaurus

1. a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium (noun.substance)

hypernym	:	metal, metallic element,
definition	:	any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. (noun.substance)

hyponym	:	columbium,
definition	:	a former name for niobium (noun.substance)

substance meronym	:	columbite, niobite,
definition	:	a black mineral that is an ore of niobium and tantalum (noun.substance)