Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • abbreviation Numbers

from The Century Dictionary.

  • noun In chem., the symbol for niobium.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry Symbol for niobium.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something
  • noun a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
  • noun a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something

Etymologies

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