Simple Definition of barium

from our Learner's Dictionary

barium

noun

ˈberijəm How to pronounce barium (audio)
: a chemical element that is a soft silver-white metal

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“Barium.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/barium. Accessed 22 Jun. 2026.

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