Dictionary.net

A dark-gray, metallic element of widespread distribution but occurring in small amounts; atomic number, 22; atomic weight, 47.90; symbol, Ti; specific gravity, 4.5; used for fixation of fractures. (Dorland, 28th ed)

A metallic element: simbol Ti.

A metallic element. It is distinguished by the readiness with which it combines with nitrogen at a high temperature. Symbol, Ti; atomic weight, 48; sp. gr., 5.3. [Gr.]

n. A metal of a deep-blue colour, very light and brittle, but so hard as to scratch steel.