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1. (n.) cerium
a steel-gray, ductile metallic element of the rare-earth group found only in combination.
Etymology: (1795–1805; Cer (es ) + -ium2)
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| Definition of 'Cerium' |
Princeton's WordNet |
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1. (noun) cerium, Ce, atomic number 58
a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
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| Definition of 'Cerium' |
Webster Dictionary |
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1. (noun) Cerium
a rare metallic element, occurring in the minerals cerite, allanite, monazite, etc. Symbol Ce. Atomic weight 141.5. It resembles iron in color and luster, but is soft, and both malleable and ductile. It tarnishes readily in the air
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| Definition of 'Cerium' |
U.S. National Library of Medicine |
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1. Cerium
An element of the rare earth family of metals. It has the atomic symbol Ce, atomic number 58, and atomic weight 140.12. Cerium is a malleable metal used in industrial applications.
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Definitions of Cerium 
