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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Another endocrine disruptor is titanium dioxide, a chemical that whitens baked goods, candy, and some dairy products like creamers. Matt Fuchs, Time, 27 Mar. 2025 In the Raleigh-Durham area of North Carolina, Cawley says, heat-map data from the area’s 2021 campaign is helping officials to identify streets to spray with reflective titanium dioxide, a covering that helps to bring down street-level temperatures. Ula Chrobak, Smithsonian Magazine, 12 Mar. 2025 Notably, though, titanium dioxide was left out of the final version of the California Food Safety Act that was signed into law in 2023.10 Other measures are starting to slowly pick up here in the United States. Emily Nadal, Parents, 1 Oct. 2024 It is labeled low risk, however, in all other products — meaning titanium dioxide on its own won’t significantly impact those products’ overall rating. Noor Lobad, WWD, 11 Feb. 2025 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

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Cite this Entry

“Titanium dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/titanium%20dioxide. Accessed 6 Apr. 2025.

Medical Definition

titanium dioxide

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

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Last Updated: - Updated example sentences
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