tan·ta·lum | \ˈtan-tə-ləm \

Definition of tantalum 

: a gray-white ductile acid-resisting metallic element found combined in rare minerals (such as tantalite and columbite) and used especially in electronic components — see Chemical Elements Table

Examples of tantalum in a Sentence

Recent Examples on the Web

Yes, things like that, or conflict minerals disclosure [which required companies to tell investors whether their products contained tantalum, tin, gold, or tungsten mined from the Democratic Republic of Congo]. Emily Stewart, Vox, "The first woman president of the NYSE would really rather not talk about her gender," 14 June 2018 Of these metals, tantalum exhibits a particularly appealing dark and stealthy lustre and was something of a signature material for the brand. Wei Koh, A-LIST, "How the Watch Industry Plundered the Periodic Table," 3 Apr. 2018 The new code raises taxes on other metals such as copper, tantalum and gold and scraps a provision that protects license holders from complying with any changes to the mining code for 10 years. Nicholas Bariyo, WSJ, "Mining Giants Face Blow From World’s No. 1 Cobalt Producer," 8 Mar. 2018 The new model suggests our home planet contains significantly more sodium, potassium, chlorine, zinc, strontium, fluorine, gallium, rubidium, niobium, gadolinium, tantalum, helium, argon, and krypton than previously believed. Jay Bennett, Popular Mechanics, "Scientists Create Most Accurate Estimate of Earth's Composition," 18 Sep. 2017 China’s Limac Corp. and North Korea’s Ryonbong General Corp. set up a joint venture in 2008 to mine tantalum, niobium and zirconium, minerals that are useful in making phones and computers but also nuclear reactors and missiles. …. James Hohmann, Washington Post, "The Daily 202: Ivanka Trump’s life of privilege undermines the credibility of her new book’s message," 8 May 2017 China’s Limac Corp. and North Korea’s Ryonbong General Corp. set up a joint venture in 2008 to mine tantalum, niobium and zirconium, minerals that are useful in making phones and computers but also... Jay Solomon, WSJ, "Chinese-North Korean Venture Shows How Much Sanctions Can Miss," 7 May 2017 The Russian SPBE-D has a much larger warhead in an attempt to guarantee a kill; the US BLU-108 fires a projectile made of the metal Tantalum which is denser and more effective, but far for expensive than copper. David Hambling, WIRED, "Russia’s ‘Cans of Whup Ass’ (Updated)," 7 June 2008 The executive action could free the SEC to amend the rule, which requires public companies to report whether any gold, tantalum, tin or tungsten in their products were mined in the Democratic Republic of Congo. Tatyana Shumsky, WSJ, "Dodd-Frank Rollback Won’t Mean Swift Change for Nonbanking Companies," 3 Feb. 2017

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

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First Known Use of tantalum

1809, in the meaning defined above

History and Etymology for tantalum

New Latin, from Latin Tantalus; from its inability to absorb acid

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The first known use of tantalum was in 1809

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tan·ta·lum | \ˈtant-ᵊl-əm \

Medical Definition of tantalum 

: a hard ductile gray-white acid-resisting metallic element of the vanadium family found combined in rare minerals and sometimes used in surgical implants and sutures symbol Ta — see Chemical Elements Table

More from Merriam-Webster on tantalum

Britannica.com: Encyclopedia article about tantalum

Comments on tantalum

What made you want to look up tantalum? Please tell us where you read or heard it (including the quote, if possible).


to reject or criticize sharply

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