tantalum

noun

tan·​ta·​lum ˈtan-tə-ləm How to pronounce tantalum (audio)
: 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 The plate is made of tantalum metal and doubles as a protective lid to shield the spacecraft’s delicate electronics. Shi En Kim, Smithsonian Magazine, 14 Mar. 2024 Decorated on both sides and made of the rare metal tantalum, the triangular plate will seal the spacecraft’s sensitive electronics inside a vault to protect them from Jupiter’s harsh radiation. Ashley Strickland, CNN, 12 Mar. 2024 The movement is coated with black and tantalum grey treatments, highlighting its cutting-edge design. Cait Bazemore, Robb Report, 31 Jan. 2024 Lead is toxic; scandium is prohibitively expensive; tantalum is a conflict material in Central Africa and, Defay says, best avoided. IEEE Spectrum, 29 Nov. 2023 Today’s solution is to deposit copper interconnects within trenches lined with 2-nanometer-thick walls of tantalum nitride. IEEE Spectrum, 17 Feb. 2017 But some of the money will also be spent at Boston Metal’s facility in Brazil, which uses the same technology to produce specialty metals like tin, niobium, and tantalum. Globe Staff, BostonGlobe.com, 6 Sep. 2023 The 42 mm timepiece is encased in tantalum, a rare, blue-grey, corrosion-resistant metal named after Tantalus of Greek mythology. Victoria Gomelsky, Robb Report, 23 July 2023 But what about the mines that produced the tantalum or palladium in your transistors? WIRED, 24 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tantalum.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

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

First Known Use

1809, in the meaning defined above

Time Traveler
The first known use of tantalum was in 1809

Dictionary Entries Near tantalum

Cite this Entry

“Tantalum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tantalum. Accessed 24 Apr. 2024.

Kids Definition

tantalum

noun
tan·​ta·​lum ˈtant-ᵊl-əm How to pronounce tantalum (audio)
: a gray-white metallic element found in rare minerals and used especially in electronic devices see element

Medical Definition

tantalum

noun
tan·​ta·​lum ˈtant-ᵊl-əm How to pronounce tantalum (audio)
: 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!