ni·​o·​bi·​um | \ nī-ˈō-bē-əm How to pronounce niobium (audio) \

Definition of niobium

: a lustrous light gray ductile metallic element that resembles tantalum chemically and is used in alloys — see Chemical Elements Table

Examples of niobium in a Sentence

Recent Examples on the Web Several components of the cars themselves are made of niobium with makes for stronger, lighter and more sustainable cars, with better energy efficiency. Paige Reddinger, Robb Report, 6 July 2022 Similarly, Rolex’s Parachrom balance spring, introduced in 2005 (niobium, zirconium, oxygen, altogether un-magnetizable), has given its watches significant advantages. Alex Doak, Wired, 30 Dec. 2021 Discovered in 1911 by Dutch physicist Heike Kamerlingh Onnes, the original superconductors were chunks of elemental metals, such as mercury and niobium, cooled to a few degrees above absolute zero. Robert F. Service, Science | AAAS, 26 Aug. 2021 The firm's Rare Metals division produces, reclaims, refines, and markets high-value niche metals and compounds that include gallium, indium, rhenium, tantalum, niobium, and hafnium. Moneyshow, Forbes, 19 Mar. 2021 Metallic superconductors such as pure aluminum or niobium, for example, have extremely low critical temperatures, typically only a few degrees above absolute zero. Jennifer Hackett, Scientific American, 17 Dec. 2015 The Estonian material, on the other hand, is a byproduct of tantalum and niobium production at a metals plant near the Baltic Sea. Zak Podmore, The Salt Lake Tribune, 16 Sep. 2020 One answer is niobium, a metal almost exclusively supplied by the South American country. Mark Olalde, USA TODAY, 11 July 2020 It is made from a C-103 niobium alloy, a fairly strong material. Eric Berger, Ars Technica, 3 June 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'niobium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of niobium

1845, in the meaning defined above

History and Etymology for niobium

New Latin, from Latin Niobe; from its occurrence in tantalite

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The first known use of niobium was in 1845

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Dictionary Entries Near niobium



niobium pentoxide

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Last Updated

10 Jul 2022

Cite this Entry

“Niobium.” Dictionary, Merriam-Webster, Accessed 14 Aug. 2022.

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More Definitions for niobium


ni·​o·​bi·​um | \ nī-ˈō-bē-əm How to pronounce niobium (audio) \

Medical Definition of niobium

: a lustrous light gray ductile metallic element that resembles tantalum chemically and is used in alloys symbol Nb

called also columbium

— see Chemical Elements Table

More from Merriam-Webster on niobium Encyclopedia article about niobium


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