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Barium
noun
Definitions
Noun
- 1 The chemical element (symbol Ba) with an atomic number of 56. It is a soft, reactive, silvery alkaline earth metal. uncountable, usually
- 2 a soft silvery metallic element of the alkali earth group; found in barite wordnet
- 3 A single atom of this element. countable, usually
- 4 Barium sulphate suspension. uncountable, usually
Etymology
Coined by British chemist Humphry Davy in 1808, from baryta + -ium.
See also for "barium"
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