titanium dioxide

noun

Definition of titanium dioxide

: 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

Only physical sunscreens with the active ingredients zinc oxide or titanium dioxide are recognized as generally safe right now. Caroline Picard, Good Housekeeping, "What the New Proposed FDA Sunscreen Regulations Mean for You," 22 Feb. 2019 Preferably the sunscreen should contain physical blockers such as zinc and/or titanium dioxide and an SPF of at least 30. Lauren Valenti, Marie Claire, "The 10 Best Eye Creams for Every Age," 14 Mar. 2017 Others rely on broad-spectrum coverage provided by compounds like zinc oxide or titanium dioxide. Evelyn Crowley, Vogue, "The 6 Biggest Skincare Breakthroughs of 2018," 19 Dec. 2018 When trying to decide between zinc oxide and titanium dioxide, Brian Underwood, the beauty director at O, The Oprah Magazine, says to go for a product that has a mix of the two. Lindsey M. Roberts, The Seattle Times, "The best sunscreens for your skin — and the earth, too," 24 Aug. 2018 The shadows also include mica to blur imperfections by reflecting light, while titanium dioxide protects your skin from harmful UV rays. Tanisha Pina, Allure, "Dermstore’s Massive Labor Day Beauty Sale Has Already Started — Here’s What to Shop," 28 Aug. 2018 What to look for: No nanoparticles Free from chemicals like oxybenzone, butylparaben, octinoxate, octocrylene, and PABA Non-nano zinc oxide or non-nano titanium dioxide for UVA/UVB (broad spectrum) coverage Lotion or balm, not spray. Mandy Ferreira, Sunset, "10 Sunscreens That Keep You and the Coral Reefs Safe," 22 Jan. 2018 Mineral sunscreens—physical blockers with ingredients like zinc and titanium dioxide—should be applied at the end of your regimen, says Dr. Shah. Talia Abbas, SELF, "I Had a Dermatologist Critique My Skin-Care Routine—and Here's What I'm Changing," 20 June 2018 Prices for titanium dioxide—the company’s largest product line—stabilized just as Opteon took off, giving Chemours some needed momentum. Ken Otterbourg, Fortune, "Teflon’s River of Fear," 24 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'titanium dioxide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of titanium dioxide

1877, in the meaning defined above

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Last Updated

18 Mar 2019

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The first known use of titanium dioxide was in 1877

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More Definitions for titanium dioxide

titanium dioxide

noun

Medical Definition of titanium dioxide

: 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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