barium

n. (Ba) white metallic element (Chemistry)

Barium (IPA: ) is a chemical element. It has the symbol Ba, and atomic number 56. Barium is a soft silvery metallic alkaline earth metal. It is never found in nature in its pure form due to its reactivity with air. Its oxide is historically known as baryta but it reacts with water and carbon dioxide and is not found as a mineral. The most common naturally occurring minerals are the very insoluble barium sulfate, BaSO4 (barite), and barium carbonate, BaCO3 (witherite). Benitoite is a rare gem containing barium.
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Noun
1. a soft silvery metallic element of the alkali earth group; found in barite
(synonym) Ba, atomic number 56
(hypernym) metallic element, metal
(hyponym) baryta
(substance-holonym) heavy spar, barite, barytes, barium sulphate

n. barium, Ba, white metallic element (Chemistry)

n. barium, white metallic element (Chemistry)