Definition of niobium

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  • niobium is a valid Scrabble US word with a point value of 11
  • niobium is a valid Scrabble UK word with a point value of 11
  • niobium is a valid Words with friends word with a point value of 15

Definition of niobium

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

    Synonyms

    1. atomic number 41
    2. nb

See definition of niobium in Merriam Webster