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
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In 2013, Snaith unveiled a cell using a layer of perovskite without titanium dioxide nanoparticles, simplifying the cell’s architecture and pushing its efficiency above 15 percent. IEEE Spectrum, 25 June 2014 Food Additives Food additives such as aluminum, titanium dioxide (TiO2), and microparticles/nanoparticles. Anna Giorgi, Verywell Health, 28 Oct. 2024 Mineral sunscreens with zinc oxide or titanium dioxide are great for sensitive skin, but chemical sunscreens packed with hydration work just as well. Christa Joanna Lee, Allure, 22 Oct. 2024 Only two sunscreen ingredients — zinc oxide and titanium dioxide — would be able to keep their decades-old approvals under that proposal. Alexander Tin, CBS News, 2 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 27 Dec. 2024.

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

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