titanium dioxide

noun
|Updated on: 8 Jul 2018

Definition of titanium dioxide

: an oxide TiO2 of titanium that occurs in rutile, anatase, and ilmenite and is used especially as a pigment

Recent Examples of titanium dioxide from the Web

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

First Known Use of titanium dioxide

1877

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Medical Dictionary

titanium dioxide

noun

medical Definition of titanium dioxide

: an oxide TiO2 of titanium that is used especially as a pigment and in sunblocks

Learn More about titanium dioxide


Seen and Heard

What made you want to look up titanium dioxide? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

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

WORD OF THE DAY

a lighting electrician on a movie set

Get Word of the Day daily email!

Test Your Vocabulary

The Eponym Quiz

  • rubens-painting
  • Which is the best synonym of bowdlerize?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

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