niobium

niobium /ni·o·bi·um/ (Nb) (ni-o´be-um) a chemical element, at. no. 41.

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ni·o·bi·um (n-b-m)

n. Symbol Nb

A soft ductile metallic element that is used in steel alloys and superconductors. Atomic number 41.

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niobium (Nb) (nīō´bēm),

n the chemical element with an atomic number of 41 and an atomic weight of 92.9064. It was formerly known as
columbium.

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niobium

a chemical element, atomic number 1, atomic weight 92.906, symbol Nb. See Table 6.