ti·ta·ni·um /taɪˈteniəm, tə ||ˈtæniəm, ˈtænjəm/
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 ti·ta·ni·um /taɪˈtenɪəm, tə , ˈtæn-/ 名詞
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 Ti·ta·ni·um n.  Chem. An elementary substance found combined in the minerals manaccanite, rutile, sphene, etc., and isolated as an infusible iron-gray amorphous powder, having a metallic luster. It burns when heated in the air. Symbol Ti. Atomic weight 48.1.

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 titanium
      n : a light strong gray lustrous corrosion-resistant metallic
          element used in strong light-weight alloys (as for
          airplane parts); the main sources are rutile and ilmenite
          [syn: Ti, atomic number 22]


 titanium
 Symbol: Ti
 Atomic number: 22
 Atomic weight: 47.90
 White metallic transition element. Occurs in numerous minerals. Used in
 strong, light corrosion-resistant alloys. Forms a passive oxide coating
 when exposed to air. First discovered by Gregor in 1789.