English noun: atomic number 41 | |||
1. | atomic number 41 (substance) a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium | ||
Synonyms | Nb, niobium | ||
Broader (hypernym) | metal, metallic element | ||
Narrower (hyponym) | columbium | ||
Substance meronym | columbite, niobite | ||