Niobium — synonyms, definition
1. niobium (Noun)
2 synonyms
NB atomic number 41
1 definition
niobium (Noun) — A soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium.
2 types of
metal metallic element
1 type
columbium
2 parts of
columbite niobite