[tahy-tey-nee-uh
m] 
| 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; atomic weight: 47.90; atomic number: 22; specific gravity: 4.5 at 20°C. |
| ti·ta·ni·um (tī-tā'nē-əm, tĭ-) n. Symbol Ti A strong, low-density, highly corrosion-resistant, lustrous white metallic element that occurs widely in igneous rocks and is used to alloy aircraft metals for low weight, strength, and high-temperature stability. Atomic number 22; atomic weight 47.87 melting point 1,660°C; boiling point 3,287°C; specific gravity 4.54; valence 2, 3, 4. See Table at element. [From Latin Tītān, Titan; see Titan.] |
titanium ti·ta·ni·um (tī-tā'nē-əm, tĭ-)
n.
Symbol Ti
A strong, low-density, highly corrosion-resistant metallic element that occurs widely in igneous rocks. Atomic number 22; atomic weight 47.88; melting point 1,668°C; boiling point 3,287°C; specific gravity 4.54; valence 2, 3, 4.