Definition of "ceria" []

• The compound cerium(IV) oxide (noun)

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• "But a little admixture, 1 percent if I recall, of ceria enables it to convert the flame's energy into the bright yellow-white light many of us have seen."
• "Caro has stated that to derive the best results a mantle needs to contain a larger proportion of ceria than the 1 per cent. present in mantles made according to the Welsbach formula, that it should be somewhat coarser in mesh, and have a large orifice at the head."
• "Other authorities hold that mantles for acetylene, should contain other rare earths besides the thoria and ceria of which the coal-gas mantles almost wholly consist."