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Feb 13, 2012
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Dictionary


ce•ri•um



Pronunciation: (sēr'ē-um), [key]
—n.
a steel-gray, ductile metallic element of the rare-earth group found only in combination. Symbol: Ce; at. wt.: 140.12; at. no.: 58.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

cerisecerium metal
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