ru·​tile ˈrü-ˌtēl How to pronounce rutile (audio)
: a reddish-brown to black mineral that consists of titanium dioxide usually with a little iron and has a brilliant metallic or adamantine luster

Example Sentences

Recent Examples on the Web Titanium ores ilmenite and rutile are available in many countries, but the capability to turn them into titanium sponge—its purest form, which is mixed into alloys for industrial purposes—is far more limited. Jon Sindreu, WSJ, 5 Aug. 2022 Choose from an assortment of colors, including satin white, rutile blue, blue-green satin matte, and Joe’s green. Shelby Comroe, Marie Claire, 7 Dec. 2020 Titanium oxide is rare on Earth, found in minerals such as rutile, anatase, and brookite. Jay Bennett, Popular Mechanics, 13 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rutile.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


German Rutil, from Latin rutilus

First Known Use

1805, in the meaning defined above

Time Traveler
The first known use of rutile was in 1805

Dictionary Entries Near rutile

Cite this Entry

“Rutile.” Dictionary, Merriam-Webster, Accessed 22 Mar. 2023.

More from Merriam-Webster on rutile

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Challenging Standardized Test Words, Vol. 2

  • a pencil broken in half on top of a test answer sheet
  • The business’s new computer system proved not to be a panacea.
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?