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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The dog version is made with ingredients like titanium dioxide, benzophenone, octinoxate, and aminobenzoic acid, which provide protection without irritating the skin. Angela Haupt, Time, 23 June 2025 One of those is the additive titanium dioxide, which forced companies to seek alternatives.12 Skittles, for example, had to change its formula in Europe. Emily Nadal, Parents, 24 Apr. 2025 Type: Powder / Active ingredients: Zinc oxide, titanium dioxide / SPF: 30 / Size: 0.12 oz. Brigitt Earley, Glamour, 2 Apr. 2025 This lightweight gel provides the look of bare skin, with a natural airbrush glow thanks to reflective minerals like mica and titanium dioxide. Conçetta Ciarlo, Vogue, 23 May 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

Browse Nearby Words

Cite this Entry

“Titanium dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/titanium%20dioxide. Accessed 1 Jul. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!