Niobium

//naɪˈoʊbiəm// noun

noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    A chemical element (symbol Nb) with an atomic number of 41: a light grey, crystalline, ductile transition metal used in superconducting materials. countable, uncountable

    "One should use hypoallergenic jewelry made of surgical grade stainless steel, titanium, 14- or 18-karat gold, or niobium, especially for initial piercings."

  2. 2
    a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium wordnet
  3. 3
    A single atom of this element. countable

Synonyms

All synonyms
atomic number 41columbiumcolumbiumdianiumdianiumgold

Example

More examples

"Niobium is a chemical element with the symbol Nb."

Etymology

From Niobe + -ium, because of the element's affinity with tantalum, named after Niobe's father Tantalus.

Related phrases

niobium carbideniobium chlorideniobium pentachlorideatomic numbercolumbite tantalite

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.