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Synonyms

1. Nb

noun. a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium.

Synonyms

  • niobium
  • atomic number 41
  • niobite
  • columbium
  • columbite
  • metal

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2. NB

noun. a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something.

Synonyms

  • note
  • NB
  • notation
  • annotation
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