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 So the company decided to change elements, switching to barium ions instead. John Timmer, Ars Technica, 3 Mar. 2022 But upon further analysis, Hahn realized the element formed was not atomic number 93, but atomic number 56, barium, roughly have the size of uranium. Melanie Fine, Forbes, 18 Oct. 2021 His optimism is buoyed by Commonwealth's successful summer test of new electromagnets engineered with superconductors made from rare earth barium copper oxide. Christopher Helman, Forbes, 2 Jan. 2022 Other counterfeit products may contain lead or other toxic chemicals, like cadmium and barium, heavy metals that are sometimes improperly used in blocks, figurines and costume jewelry. Rebecca Lurye,, 26 Nov. 2021 Residents not only inhaled air pollutants but were also exposed to toxic chemicals, metals such as barium, and oil residue that settled inside their homes, as shown by dust sampling. Los Angeles Times, 5 Nov. 2021 Analysis of 28 other luster dust samples for the bakery marked as inedible found elevated levels of several other metals including aluminum, barium, lead and nickel. Victoria Forster, Forbes, 28 Oct. 2021 Barium is obtained chiefly from the mineral barite consisting of barium-sulfate. David Bressan, Forbes, 4 July 2021 Residents not only inhaled air pollutants but were also exposed to toxic chemicals, metals such as barium and oil residue that settled inside their homes and were detected in dust sampling. Leila Miller, Los Angeles Times, 3 Oct. 2021 See More

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.

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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Dictionary Entries Near barium

baritone oboe


barium carbonate

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Statistics for barium

Cite this Entry

“Barium.” Dictionary, Merriam-Webster, Accessed 19 May. 2022.

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More Definitions for barium


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

More from Merriam-Webster on barium

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


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