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

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

The ozone layer could also deplete by as much as 32%, according to the study. —Ashley Strickland, CNN, 5 Feb. 2025

Jonathan Shanklin, a meteorologist and an emeritus fellow for the British Antarctic Survey (BAS), helped discover the hole in the ozone layer in 1985 along with Joe Farman and Brian G. Gardiner. —Thomas Westerholm, MSNBC Newsweek, 21 May 2025

As some of the most energetic phenomena in the universe, supernovae occurring within 60 light-years of Earth could have stripped our planet's atmosphere of its protective ozone layer, exposing life to damaging ultraviolet radiation from the sun, a team of astronomers has discovered. —Sharmila Kuthunur, Space.com, 20 Mar. 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