What does NB mean in Unclassified?
This page is about the meanings of the acronym/abbreviation/shorthand NB in the Miscellaneous field in general and in the Unclassified terminology in particular.
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What does NB mean?
- niobium, Nb, atomic number 41(noun)
- a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium