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barium

bar·i·um [ ˈber-ē-əm]

barium

noun

[ˈber-ē-əm]

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

2 : barium sulfate

Recent Examples on the Web

//The elevation of the land is only about 7½ feet, and an environmental report released last month found that soil is contaminated with toxic levels of arsenic, barium and lead.
— Rick Maese, The Denver Post, "As waters rise, so do concerns for sports teams along coast," 18 Oct. 2019
//The elevation of the land is only about 7½ feet, and an environmental report released last month found that soil is contaminated with toxic levels of arsenic, barium and lead.
— Rick Maese, courant.com, "As waters rise, so do concerns for sports teams along coast," 18 Oct. 2019
//But a scatter diagram presented in the lawsuit shows its ratios of barium to nickel and strontium to zinc fall far outside the norms for Kona.
— Los Angeles Times, "The Kona coffee you buy from Costco and Walmart? It might be fake," 15 Sep. 2019
//Sobolev says that these minerals, which include chlorine, lead, and barium, hint towards a subterranean ocean comparable in mass to all the present-day oceans combined.
— David Grossman, Popular Mechanics, "How a Few Water Drops Could Change What We Know About Plate Tectonics," 6 Aug. 2019
//The Russian meteorological agency identified them as isotopes of strontium, two types of barium, and lanthanum but asserted that radiation levels are now normal in cities near the accident, which occurred Aug. 8 in the country’s north.
— Andrew E. Kramer, BostonGlobe.com, "Russia identifies four radioactive isotopes from nuclear accident," 26 Aug. 2019
//The Russian meteorological agency identified them as isotopes of strontium, two types of barium and lanthanum, but asserted that radiation levels are now normal in cities near the accident, which occurred on Aug. 8 in the country’s north.
— Andrew E. Kramer, New York Times, "Russia Identifies 4 Radioactive Isotopes From Nuclear Accident," 26 Aug. 2019
//Various forms of barium are used as a stabilizing additive to fracking fluids, and companies including the oil field services firm Halliburton testified that using alternative products would decrease drilling productivity.
— Lydia Depillis, ProPublica, "Bibles but Not Textbooks: Trump’s Tariff Exemptions Pick Winners and Losers," 22 Aug. 2019
//Barium accumulation in the two sets of teeth showed steady patterns of accumulating barium after three months of age, which indicated that the behavior lasted for about a year.
— Ashley Strickland, CNN, "Early humans breastfed their young for a year, study says," 15 July 2019

First Known Use of barium

1808, in the meaning defined at sense 1

History and Etymology for barium

New Latin, from bar-

Dictionary Entries near barium

More Definitions forbarium

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- \

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

2 : barium sulfate