zinc oxide

noun

: 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

The hybrid formula is powered by mineral filter zinc oxide and two chemical sunscreen ingredients, while vitamin E provides additional protection against free radicals, which contribute to signs of aging, hyperpigmentation, and skin cancer. — Sara Coughlin, Allure, 9 July 2026

The electrons are transferred into the underlying transistor channel, which is made of indium gallium zinc oxide (IGZO). — Tereza Pultarova, IEEE Spectrum, 7 July 2026

Hawaiian Tropic’s zinc oxide formula, a physical UV blocker, brushes on with a matte, translucent finish and leaves no white cast on most skin tones. — Lauren Jarvis-Gibson july 1, Kansas City Star, 2 July 2026

Enriched with zinc oxide, niacinamide, and vitamin E for a visibly smoother, more even complexion. — ABC News, 2 July 2026

Word History

First Known Use

1849, in the meaning defined above

Rhymes for zinc oxide

• actinide
• aldehyde
• alkoxide
• alongside
• amplified
• arsenide
• beautified
• biocide
• bisulphide
• butoxide
• calcified
• ceramide

Kids Definition

zinc oxide

noun

: a white substance that is used as a white pigment, is added to rubber, and is used in medical and cosmetic preparations (as ointments and sunblocks)

Medical Definition

zinc oxide

noun

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