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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
Wear a mineral sunscreen that blocks the sun's ultraviolet (UV) rays with zinc oxide or titanium dioxide.
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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.
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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.
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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.
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Emily Nadal, Parents, 1 Oct. 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 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
Britannica.com: Encyclopedia article about titanium dioxide
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