Dictionary
ti•ta•ni•um
Pronunciation: (tī-tā'nē-um), [key]—
n. Chem.
a dark-gray or silvery, lustrous, very hard, light, corrosion-resistant, metallic element, occurring combined in various minerals: used in metallurgy to remove oxygen and nitrogen from steel and to toughen it.
Symbol: Ti;
at. wt.: 47.90;
at. no.: 22;
sp. gr.: 4.5 at 20°C.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.