ti·ta·ni·um (tī-tānē-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 1,668°C; boiling point 3,287°C; specific gravity 4.51; valence 2, 3, 4. See Periodic Table.
[From Latin Tītān, Titan; see TITAN.]
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