Medical Dictionary

niobium

noun ni·o·bi·um \nī-ˈō-bē-əm\

Medical Definition of NIOBIUM

:  a lustrous light gray ductile metallic element that resembles tantalum chemically and is used in alloys—symbol Nb; called also columbium; see element table

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May 23, 2015
debouch Hear it
to emerge or cause to emerge
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