a hard, reddish, tetragonal form of titanium dioxide, an ore of titanium
Origin of rutilefrom French or Ger: French from German rutil from Classical Latin rutilus, red; akin to rufus, rubeus, red
A lustrous red, reddish-brown, or black mineral, TiO2, used as a gemstone, as an ore, and in paints and fillers.
Origin of rutileFrench from German Rutil from Latin rutilus red ; see rutilant .
(countable and uncountable, plural rutiles)