Erbium

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The American Heritage® Dictionary of the English Language, 4th Edition
  • n. A soft, malleable, silvery rare-earth element, used in metallurgy and nuclear research and to color glass and porcelain. Atomic number 68; atomic weight 167.26; melting point 1,497°C; boiling point 2,900°C; specific gravity 9.051; valence 3. See Table at element.
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. a metallic chemical element (symbol Er) with an atomic number of 68.
    • the GNU version of the Collaborative International Dictionary of English
  • n. A rare earth element of the lanthanide series associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden. Symbol Er. It has atomic number 68 and an atomic weight of 167.26. The pure element is metallic with a bright, silvery luster. It is relatively stable in air, not oxidizing as quickly as some other rare earths. Its salts are rose-colored and give characteristic spectra, and the pink oxide has been added as a colorant in glass and porcelain enamel glazes. Its sesquioxide Er2O3 is called erbia.
    • The Century Dictionary and Cyclopedia
  • n. Chemical symbol, Er; A rare metal found along with yttrium, terbium, and a number of other rare elements in some rare minerals, as euxenite, fergusonite, and gadolinite, in which it exists as a tantalate or silicate.
    • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • n. a trivalent metallic element of the rare earth group; occurs with yttrium
    • Hypernym
    Words that are more generic or abstract
    metallic element    metal   
    Same Context
    Words that are found in similar contexts
    dysprosium    ytterbium    gadolinium   
     
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