Hypertext Webster Gateway: "zirconium"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
From WordNet (r) 1.7 (wn)
zirconium
n : a lustrous gray 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
[syn: {Zr}, {atomic number 40}]
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