- noun a soft grey metallic element, the most abundant of the rare earth group, used in glassmaking, ceramics, cigarette-lighter flints
- An iron-gray, ductile, and highly reactive metal whose atomic number is 58. It has about 30 known isotopes, of which 3 are stable. Among its applications in electronics are its use as a getter in vacuum tubes, and as a phosphor. Its chemical symbol is Ce.
- chemical symbol Ce
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