zinc oxide

noun

Definition of zinc oxide

: an infusible white solid ZnO used especially as a pigment, in compounding rubber, and in pharmaceutical and cosmetic preparations (such as ointments and sunblocks)

Examples of zinc oxide 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 Zincofax's Extra Strength Diaper Rash Baby Ointment, which is only available in Canada, is formulated with 47 percent petroleum jelly and 40 percent zinc oxide. Renee Jacques, Allure, "A Redditor Claims Diaper Cream Cleared Up Their Cystic Acne — Here's What Experts Say," 16 Aug. 2018 Since the eyes tend to be more sensitive than the rest of the face, seek out versions with physical blockers like zinc oxide, which are often better tolerated around itch- or tear-prone eyes. Lauren Hubbard, Town & Country, "How to Get Rid of Dark Circles," 4 Feb. 2019 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 Petiue's SPF Highlighter contains both physical and chemical sunscreens: zinc oxide, which protects against UVA rays, and octinoxate, octocrylene, and octisalate, all of which protect against UVB rays, explains cosmetic chemist Ginger King. Macaela Mackenzie, Allure, "Petiue Launches an SPF Highlighter, But What Exactly Does That Mean?," 7 Sep. 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 So Nadeau created one: a non-nano zinc oxide sunscreen, which remains a bestseller. Fiorella Valdesolo, WSJ, "3 Skincare Experts on Their Favorite Things," 23 Aug. 2018 This French pharmacy export has a highly effective blend of zinc oxide and titanium dioxide with no chemical UV filters. Jenna Rennert, Vogue, "The Best Drugstore Beauty Products, According to Vogue Editors," 16 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'zinc oxide.' 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 zinc oxide

1849, in the meaning defined above

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Last Updated

24 Mar 2019

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The first known use of zinc oxide was in 1849

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More Definitions for zinc oxide

zinc oxide

noun

Medical Definition of zinc oxide

: a white solid ZnO used in pharmaceutical and cosmetic preparations (as ointments and powders)

More from Merriam-Webster on zinc oxide

Britannica.com: Encyclopedia article about zinc oxide

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