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ce•ri•a



Pronunciation: (sēr'ē-u), [key]
n.
a white-to-yellow, heavy powder, cerium dioxide, CeO2, usually derived from cerium nitrate by decomposition with heat: used chiefly in ceramics, glass polishing, and decolorizing.

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

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