barium

noun
bar·​i·​um | \ ˈber-ē-əm How to pronounce barium (audio) \

Definition of barium

1 : a silver-white metallic element of the alkaline earth metal group with atomic number 56 that is used especially in drilling fluid, as a getter in vacuum tubes, and as a contrast agent in medical imaging — see Chemical Elements Table

Examples of barium in a Sentence

Recent Examples on the Web

That year, Orenstein and his colleagues at Bell Labs studied a cuprate called yttrium barium copper oxide and found that, like Bednorz and Müller’s sample, its electrical resistance dropped linearly as it was cooled toward its critical temperature. Quanta Magazine, "Universal Quantum Phenomenon Found in Strange Metals," 19 Nov. 2018 Payre 336's tooth enamel didn't show any clear patterns of barium levels. Kiona N. Smith, Ars Technica, "Neanderthal teeth reveal lead exposure and difficult winters," 31 Oct. 2018 But that process lasted until the child was around 2.5 years old, when the barium signature in their tooth enamel finally fades out altogether. Kiona N. Smith, Ars Technica, "Neanderthal teeth reveal lead exposure and difficult winters," 31 Oct. 2018 Nursing often leaves higher levels of barium in a child's tooth enamel. Kiona N. Smith, Ars Technica, "Neanderthal teeth reveal lead exposure and difficult winters," 31 Oct. 2018 From black powder to barium, music to mortars, pyrotechnics pro Jim Souza, whose company puts on the Macy's 4th of July Show in New York, explains the year-long process behind putting on a major performance. Alex Davies, WIRED, "The Delightfully Nonsensical Slingshot Might Just Be the Future of Driving," 4 July 2018 Calcium, for instance, will glow orange, barium green, and strontium red. Kevin Davenport, idahostatesman, "O say can you see? The science behind the booms and blooms of Independence Day fireworks," 3 July 2018 As if the asbestos findings aren't scary enough, the lab also found the heavy metals barium, chromium, selenium and lead in Just Shine Shimmer Powder. Marci Robin, Good Housekeeping, "UPDATE: Justice Has Just Announced a Recall of 8 Makeup Products Due to Asbestos Concerns," 1 Feb. 2018 Among the atoms resulting from neutron bombardment were much smaller atoms like barium, which has an atomic number of 56. Umair Irfan, Vox, "Uranium enrichment will be a key point in talks with North Korea. Here’s what it is.," 11 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'barium.' 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 barium

1808, in the meaning defined at sense 1

History and Etymology for barium

New Latin, from bar-

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Statistics for barium

Last Updated

19 Jun 2019

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Time Traveler for barium

The first known use of barium was in 1808

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More Definitions for barium

barium

noun

English Language Learners Definition of barium

: a chemical element that is a soft silver-white metal

barium

noun
bar·​i·​um | \ ˈbar-ē-əm, ˈber- How to pronounce barium (audio) \

Medical Definition of barium

1 : a silver-white malleable toxic bivalent metallic element of the alkaline-earth group that occurs only in combination symbol Ba — see Chemical Elements Table

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More from Merriam-Webster on barium

Spanish Central: Translation of barium

Nglish: Translation of barium for Spanish Speakers

Britannica.com: Encyclopedia article about barium

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