cerium

(redirected from Element 58)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to Element 58: Element 56, Element 59, Element 68, Element 69

ce·ri·um

 (sîr′ē-əm)
n. Symbol Ce
A lustrous, iron-gray, malleable metallic element of the lanthanide series that occurs chiefly in the minerals monazite and bastnaesite, exists in four allotropic states, is a constituent of pyrophoric alloys, and is used in metallurgy and in the manufacture of glass, incandescent mantles, and hydrocarbon combustion catalysts. Atomic number 58; atomic weight 140.12; melting point 799°C; boiling point 3,443°C; specific gravity 6.77; valence 3, 4. See Periodic Table.

cerium

(ˈsɪərɪəm)
n
(Elements & Compounds) a malleable ductile steel-grey element of the lanthanide series of metals, used in lighter flints and as a reducing agent in metallurgy. Symbol: Ce; atomic no: 58; atomic wt: 140.115; valency: 3 or 4; relative density: 6.770; melting pt: 798°C; boiling pt: 3443°C
[C19: New Latin, from Ceres (the asteroid) + -ium]

ce•ri•um

(ˈsɪər i əm)

n.
a steel-gray, ductile metallic element of the rare-earth group found only in combination. Symbol: Ce; at. wt.: 140.12; at. no.: 58.
[1795–1805; Cer (es) + -ium2]

ce·ri·um

(sîr′ē-əm)
Symbol Ce A shiny, gray metallic element of the lanthanide series. It is easily shaped and in pure form will ignite if scratched with a knife. It is used in glass polishing and as a catalyst in self-cleaning ovens. Atomic number 58. See Periodic Table.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cerium - a ductile grey metallic element of the lanthanide seriescerium - a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
bastnaesite, bastnasite - a yellow-to-brown mineral that is a source of rare earth elements
gadolinite, ytterbite - a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
monazite - a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium
Translations
церий
cercér
cerium
cerio
tseerium
cerium
cerij
cérium
serín
セリウム
cerium
ceris
cerium
cer
ceriu
cér
cerij
cerium
seryum
References in periodicals archive ?
By comparison, IC element 58 scores fall slightly below the quadrant averages in all cases.