erbium(redirected from Element 68)
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n. Symbol Er
A soft, malleable, silvery element of the lanthanide series, used in metallurgy and nuclear research and to color glass and porcelain. Atomic number 68; atomic weight 167.26; melting point 1,529°C; boiling point 2,868°C; specific gravity 9.066; valence 3. See Periodic Table.
[After Ytterby, a town in Sweden.]
(Elements & Compounds) a soft malleable silvery-white element of the lanthanide series of metals: used in special alloys, room-temperature lasers, and as a pigment. Symbol: Er; atomic no: 68; atomic wt: 167.26; valency: 3; relative density: 9.006; melting pt: 1529°C; boiling pt: 2868°C
[C19: from New Latin, from (Ytt)erb(y), Sweden, where it was first found + -ium]
er•bi•um(ˈɜr bi əm)
a rare-earth element, having pink salts. Symbol: Er; at. wt.: 167.26; at. no.: 68.
[1835–45; < New Latin, after Ytterby, Sweden, where first found; see -ium2]
Symbol Er A soft, silvery, easily shaped metallic element of the lanthanide series. It is used to make light signals stronger in long-distance telephone and computer cables that use fiber optics. Atomic number 68. See Periodic Table.
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|Noun||1.||erbium - a trivalent metallic element of the rare earth group; occurs with yttrium|
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.
fergusonite - a dark mineral consisting of oxides of yttrium and erbium and tantalum and other minerals