Definition of rutile
: a reddish-brown to black mineral that consists of titanium dioxide usually with a little iron and has a brilliant metallic or adamantine luster
Origin of rutile
German Rutil, from Latin rutilus
First Known Use: 1803
Learn More about rutile
Britannica.com: Encyclopedia article about "rutile"
Seen and Heard
What made you want to look up rutile? Please tell us where you read or heard it (including the quote, if possible).