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The chemical element (symbol Ba) with an atomic number of 56. It is a soft, reactive, silvery alkaline earth metal. / (countable) A single atom of this element. / (medicine) barium sulfate suspension.

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barium

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barium

/ˈbɛəɹɪəm/

noun

The chemical element (symbol Ba) with an atomic number of 56. It is a soft, reactive, silvery alkaline earth metal. / (countable) A single atom of this element. / (medicine) barium sulfate suspension.