barium Hear it!

barium definition

bar·ium (ber′ē əm)

noun

a silver-white, slightly malleable, metallic chemical element, one of the alkaline-earth metals, found as a carbonate or sulfate and used in alloys: symbol, Ba; at. no., 56

Etymology: ModL < Gr barys, heavy (see grave) + -ium

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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