bar·i·um | \ˈber-ē-əm \

Definition of barium 

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

Examples of barium in a Sentence

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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 And measurements of barium, titanium, and iron show that the mass of growing life was much higher, as well. Scott K. Johnson, Ars Technica, "Life returned to crater of Cretaceous asteroid in the blink of an eye," 30 May 2018 Other chemicals cited in a report include mercury, lead, barium and cadmium. Mary Shanklin,, "Publix gets brownfield tax aid for Oviedo, Orlando sites," 2 Dec. 2017 Clad in lime green T-shirts with the names of toxic chemicals such as PCBs, chromium, barium and lead, residents opposing the plan asked the property owners to consider doing more testing and capping the landfill with clean soil. Kathleen Mcwilliams, Courant Community, "Rocky Hill Residents Speak Out Against Plan For Former Dump Site," 27 Apr. 2018 The samples were sent to an independent lab for analysis and showed elevated levels of pollutants, including lead, selenium, vanadium, barium, cadmium, cobalt, manganese, and arsenic. Dennis Pillion,, "Mobile Baykeeper: Coal ash endangers 'America's Amazon,' Mobile-Tensaw Delta," 28 Mar. 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

1905, in the meaning defined at sense 1

History and Etymology for barium

New Latin, from bar-

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Time Traveler for barium

The first known use of barium was in 1905

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More Definitions for barium



English Language Learners Definition of barium

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


bar·i·um | \ˈbar-ē-əm, ˈber- \

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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Spanish Central: Translation of barium

Nglish: Translation of barium for Spanish Speakers Encyclopedia article about barium

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a state of commotion or excitement

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