zirconium


From The Collaborative International Dictionary of English v.0.48:

Zirconium \Zir*co"ni*um\, n. [NL.] (Chem.)
   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.
   [1913 Webster]
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