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Webster 1913 Edition
Zirconium
Zir-co′ni-um
,Noun.
[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.
Webster 1828 Edition
Zirconium
ZIRCONIUM
,Noun.