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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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 For instance, mineral sunscreens (or physical sunscreens) primarily contain titanium dioxide, zinc oxide. Sherri Gordon, Health, 6 Aug. 2024 This sunscreen guards against sun damage with the help of mineral UV blockers, titanium dioxide, and zinc oxide while antioxidant-rich plankton extract protects delicate skin against environmental aggressors. Jennifer Hussein, Allure, 18 Aug. 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 15 Nov. 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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