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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
Chemical sunscreens contain ingredients that absorb UV rays while mineral sunscreens rely on zinc oxide or titanium dioxide to block or reflect the rays.
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Kevinisha Walker, Los Angeles Times, 29 June 2024
Their active ingredients—zinc oxide and titanium dioxide—are technically naturally occurring minerals, but synthetic versions are used in sunscreen formulations.
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Kara Nesvig, Allure, 27 June 2024
Kids’ sunscreen is often created with mineral ingredients zinc oxide or titanium dioxide and with sensitive skin in mind.
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Clare Mulroy, USA TODAY, 17 June 2024
Zinc oxide and titanium dioxide are mineral sunscreen agents to look out for.
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Lauren Valenti, Vogue, 11 June 2024
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These examples are programmatically compiled from various online sources to illustrate current usage of the word 'titanium dioxide.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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 7 Jul. 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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