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

Increasing launch cadence may threaten ozone layer. —ArsTechnica, 20 June 2025

This is significant because the ozone layer shields our planet from harmful radiation from the sun. —Robert Lea, Space.com, 13 June 2025

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, Verywell Health, 27 May 2025

Thanks to a legally binding agreement to phase them out, the ozone layer is now healing. —Ingmar Rentzhog, Forbes.com, 12 Apr. 2025

Word History

First Known Use

1927, in the meaning defined above

Rhymes for ozone layer

• assayer
• ballplayer
• betrayer
• bilayer
• bricklayer
• conveyer
• conveyor
• purveyor
• ratepayer
• soothsayer
• surveyor
• taxpayer

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