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

Reef-safe, mineral formulas with zinc oxide or titanium dioxide are a better solution. — Leslie Baumann, Miami Herald, 17 Sep. 2026

Ingredients include non-nano sheer zinc oxide, flax and licorice exosomes, vitamin C and tomato extract. — Ryma Chikhoune, Footwear News, 8 Sep. 2026

While each formula is different, most diaper rash creams use zinc oxide or petrolatum to protect baby’s skin. — Bestreviews, Mercury News, 7 Sep. 2026

That’s why to create the material, the research team produced microscopic fibers containing a purple metal-organic framework (MOF) and zinc oxide nanoparticles. — Georgina Jedikovska, Interesting Engineering, 24 Aug. 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)