Rutile

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Rutile \Ru"tile\ (r[udd]"t[i^]l), n. [L. rutilus red, inclining
     to golden yellow.] (Min.)
     A mineral usually of a reddish brown color, and brilliant
     metallic adamantine luster, occurring in tetragonal crystals.
     In composition it is titanium dioxide, like octahedrite and
     brookite.


     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  rutile
       n : a mineral consisting of titanium dioxide in crystalline
           form; occurs in metamorphic and plutonic rocks and is a
           major source of titanium