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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
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
Active ingredients: Zinc oxide, titanium dioxide / SPF: 30 / Size: 3.2 fl. oz.
—Danielle Sinay, Glamour, 13 Aug. 2024
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Word History
First Known Use
1877, in the meaning defined above
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 23 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
Britannica.com: Encyclopedia article about titanium dioxide
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