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Niobium
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noun
niobium
n. (Chem.) The chemical element of atomic number 41. Chemical symbol Nb. Atomic weight 92.91. Previously called columbium. See also Columbium.
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Etymology of 'Niobium'
Collaborative International Dictionary of English 0.48
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Words linked to "Niobium" :
niobite
,
nb
,
metallic element
,
columbite
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