titanium dioxide

noun

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

Examples of titanium dioxide in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Wear a mineral sunscreen that blocks the sun's ultraviolet (UV) rays with zinc oxide or titanium dioxide. Carrie Madormo, Rn, Mph, Verywell Health, 27 Jan. 2025 Kourosh’s research has led to specific recommendations for skin protection during fire events, such as using mineral sunscreen containing zinc and titanium dioxide. Jackie Snow, Los Angeles Times, 11 Jan. 2025 For example, the whitening agent titanium dioxide in soups and dairy products can build up in the body and even damage DNA. European countries take a much more precautionary approach to additives in their food, Benesh says. Jonquilyn Hill, Vox, 5 Nov. 2024 With the research and data coming out, the European Union, out of an abundance of caution, decided to pull the additive titanium dioxide from its food supply, forcing companies to seek alternatives.9 Skittles, for example, had to change its formula in Europe. Emily Nadal, Parents, 1 Oct. 2024 See all Example Sentences for titanium dioxide 

Word History

First Known Use

1877, in the meaning defined above

Time Traveler
The first known use of titanium dioxide was in 1877

Dictionary Entries Near titanium dioxide

Cite this Entry

“Titanium dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/titanium%20dioxide. Accessed 21 Feb. 2025.

Medical Definition

titanium dioxide

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

More from Merriam-Webster on titanium dioxide

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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