Zirconium

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The American Heritage® Dictionary of the English Language, 4th Edition
  • n. A lustrous, grayish-white, strong, ductile metallic element obtained primarily from zircon and used chiefly in ceramic and refractory compounds, as an alloying agent, and in nuclear reactors as a highly corrosion-resistant alloy. Atomic number 40; atomic weight 91.22; melting point 1,852°C; boiling point 4,377°C; specific gravity 6.56 (20°C); valence 2, 3, 4. See Table at element.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. a metallic chemical element (symbol Zr) with an atomic number of 40.
  • the GNU version of the Collaborative International Dictionary of English
  • n. A rare element of the carbon-silicon group, intermediate between the metals and nonmetals, obtained from the mineral zircon as a dark sooty powder, or as a gray metallic crystalline substance. Symbol Zr. Atomic weight, 90.4.
  • The Century Dictionary and Cyclopedia
  • n. Chemical symbol, Zr; atomic weight, 89.6. The metal contained in zirconia.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • n. a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
  • Hypernym
    Words that are more generic or abstract
    Cross Reference
    jacinth    ligure    hyacinth    baddeleyite    jargon   
    Rhyme
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    ammonium    harmonium    pandemonium    plutonium    polonium   
    Same Context
    Words that are found in similar contexts
    tantalum    vanadium    yttrium    beryllium    chromium