niobium

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niobium

 (Nb) [ni-o´be-um]
a chemical element, atomic number 1, atomic weight 92.906. (See Appendix 6.)

ni·o·bi·um (Nb),

(nī-ō'bē-ŭm),
A rare metallic element, atomic no. 41, atomic wt. 92.90638, usually found with tantalum.
[Niobe, daughter of Tantalus]

ni·o·bi·um

(nī-ō'bē-ŭm)
A rare metallic element; atomic no. 41, atomic wt. 92.90638; usually found with tantalum.
[Niobe, daughter of Tantalus in Greek mythology]