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ozone layer
noun
: an atmospheric layer at heights of about 20 to 30 miles (32 to 48 kilometers) that is normally characterized by high ozone content which blocks most solar ultraviolet radiation from entry into the lower atmosphere
Examples of ozone layer in a Sentence
Recent Examples on the Web
The two planetary boundary processes stratospheric ozone depletion (the loss of the ozone layer due to chemicals like CFCs) and atmospheric aerosol loading (primarily driven by the incomplete combustion of fossil fuels) are currently within the green zone at a global scale.
—Johan Rockström, TIME, 2 Oct. 2024
Elsewhere, researchers from the University of Southern California writing in Geophysical Research Letters estimate airborne aluminum oxide pollution caused by a growing number of incinerated satellites may possess the potential to damage the Earth’s ozone layer.
—Mack Degeurin, Popular Science, 8 Aug. 2024
We’re left hoping that hazardous pieces won’t reach the ground, that all those tons of vaporized aerospace-grade metal won’t further erode our planet’s protective ozone layer, that the sky will not fall.
—Samantha Lawler, Scientific American, 11 July 2024
Conversely, smog, cloud cover, and thicker ozone layers limit the amount of UV radiation that reaches the skin.6
Locations further from the equator at higher altitudes experience less sunlight in the winter and more in the summer.
—Amy Brownstein, Ms, Rdn, Verywell Health, 10 July 2024
See all Example Sentences for ozone layer
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ozone layer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
1927, in the meaning defined above
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Cite this Entry
“Ozone layer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ozone%20layer. Accessed 25 Oct. 2024.
Kids Definition
ozone layer
noun
: a layer of the earth's atmosphere at heights of about 20 to 30 miles (32 to 48 kilometers) that is normally characterized by high ozone content which blocks most of the sun's ultraviolet radiation from entry into the lower atmosphere
More from Merriam-Webster on ozone layer
Britannica.com: Encyclopedia article about ozone layer
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