Dictionary
zir•co•ni•um
Pronunciation: (zûr-kō'nē-um), [key]—
n. Chem.
a metallic element found combined in zircon, baddeleyite, etc., resembling titanium chemically: used in steel metallurgy, as a scavenger, as a refractory, and as an opacifier in vitreous enamels.
Symbol: Zr;
at. wt.: 91.22;
at. no.: 40;
sp. gr.: 6.49 at 20°C.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.