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cerium

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
cerium /ce·ri·um/ (Ce) (sēr´e-um) a chemical element, at. no. 58.
ce·ri·um (sîr-m)
n. Symbol Ce
A lustrous, malleable metallic rare-earth element that occurs chiefly in the minerals monazite and bastnaesite, exists in four allotropic states, and is used in lighter flint alloys. Atomic number 58.

cerium (Ce)
[sir′ē·əm]
Etymology: L, Ceres, Roman goddess of agriculture
a ductile gray rare earth element. Its atomic number is 58; its atomic mass is 140.13. A compound of cerium, cerium oxalate, is used as a sedative, an antiemetic, and an antitussive.

cerium,
n a ductile, gray rare-earth element. Cerium oxalate is used as a sedative, an antiemetic, and an antitussive. Cerium oxide is used in dental porcelains to stimulate the natural fluorescence found in human dental enamel.

cerium
a chemical element, atomic number 58, atomic weight 140.12, symbol Ce. See also Table 6.


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a Nernst glower, which is a filament containing uranium, thorium and cerium oxide held together by a binder; and
Cerium octoate (2-ethylhexanoate) for PVC, silicone rubber, and other polymers.
The Asian behemoth now supplies approximately 95 percent of the world's consumption of "rare earths," such as cerium, neodymium, lathanum, yttrium, and dysprosium.
 
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