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
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Scientists project that if current trends continue, the ozone layer could fully recover by 2066, marking a significant triumph of international environmental cooperation and scientific innovation. Tom Howarth follow, Newsweek, 1 Nov. 2024 The missing ozone layer and magnetic field means ultraviolet radiation from the Sun is about 30% stronger than on Earth, sterilizing those dusty red rocks. Michael Irving, New Atlas, 17 Oct. 2024 Researchers at the University of Southern California released a study saying that satellites are significantly damaging Earth's ozone layer. Brandi D. Addison, Austin American-Statesman, 28 June 2024 Ozone: Ozone absorbs UV radiation and helps keep the rays from reaching the surface, but if the ozone layer has been depleted, more UV radiation is getting to Earth. Sherri Gordon, Health, 16 Aug. 2024 See all Example Sentences for ozone layer 

Word History

First Known Use

1927, in the meaning defined above

Time Traveler
The first known use of ozone layer was in 1927

Dictionary Entries Near ozone layer

Cite this Entry

“Ozone layer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ozone%20layer. Accessed 30 Dec. 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

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