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zinc oxide

American  

noun

Chemistry, Pharmacology.
  1. a white or yellowish-white, amorphous, odorless, water-insoluble powder, ZnO, used chiefly as a paint pigment, in cosmetics, dental cements, matches, white printing inks, and opaque glass, and in medicine in the treatment of skin conditions.


zinc oxide British  

noun

  1. Also called: flowers of zinc.   philosopher's wool.  a white insoluble powder used as a pigment in paints ( zinc white or Chinese white ), cosmetics, glass, and printing inks. It is an antiseptic and astringent and is used in making zinc ointment. Formula: ZnO

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

zinc oxide Scientific  
  1. A white or yellowish powdery compound used in paints and in various medicines and skin cosmetics. Chemical formula: ZnO.


Etymology

Origin of zinc oxide

First recorded in 1840–50

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

She said some designers are now innovating fabrics with zinc oxide to make the material feel cooler to the touch.

From BBC Aug. 3, 2026

Food and Drug Administration classifies zinc oxide as safe and effective.

From Science Daily Jul. 20, 2026

In this study, the research team was able to manipulate the internal states of quantum dots in zinc oxide using precise voltage control -- like adjusting the dials on a radio to fine-tune a signal.

From Science Daily Nov. 26, 2024

"By using zinc oxide, we're opening up new frontiers developing efficient and stable qubits, a cornerstone for quantum computing."

From Science Daily Nov. 26, 2024

Her face was smeared with so much zinc oxide that it looked like she’d fallen nose-first into a frosted cake.

From "Flush" by Carl Hiaasen

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