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
Examples of barium in a Sentence
Recent Examples on the Web
This system uses an isotope of ytterbium for qubits and barium ions for cooling.
—
Paul Smith-Goodson, Forbes, 2 Oct. 2024
This imaging test uses an X-ray and barium solution to observe the shape and coordination of the esophagus after swallowing.
—Anna Giorgi, Verywell Health, 29 July 2024
Crystal, however, also has lead oxide, barium oxide, zinc oxide, or potassium oxide added.
—Heather Bien, Southern Living, 29 July 2024
Rare earth barium copper oxide superconducting magnets created by Cambridge Fusion Systems in partnership with scientists at MIT are smaller, more powerful and need less energy to run.
—Siddhant Pusdekar, Journal Sentinel, 23 July 2024
See all Example Sentences for barium 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Paul Smith-Goodson, Forbes, 2 Oct. 2024
This imaging test uses an X-ray and barium solution to observe the shape and coordination of the esophagus after swallowing.
—Anna Giorgi, Verywell Health, 29 July 2024
Crystal, however, also has lead oxide, barium oxide, zinc oxide, or potassium oxide added.
—Heather Bien, Southern Living, 29 July 2024
Rare earth barium copper oxide superconducting magnets created by Cambridge Fusion Systems in partnership with scientists at MIT are smaller, more powerful and need less energy to run.
—Siddhant Pusdekar, Journal Sentinel, 23 July 2024
See all Example Sentences for barium
Dictionary Entries Near barium
Cite this Entry
“Barium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/barium. Accessed 22 Nov. 2024.
Copy CitationKids Definition
Medical Definition
barium
noun
bar·i·um
ˈbar-ē-əm, ˈber- 
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share