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

Experts warn that massive constellations could be incredibly ecologically damaging, releasing copious amounts of atmospheric pollution and risking damage to the ozone layer. — Victor Tangermann, Futurism, 24 Sep. 2026

Only ozone shows clear progress away from the planetary boundary as a result of the success of the Montreal Protocol, which set up the phasing out of the chemicals that erode Earth’s protective ozone layer. — Andrea Thompson, Scientific American, 21 Sep. 2026

But sulfur dioxide can have negative impacts, including contributing to acid rain and ozone layer depletion. — Laura Paddison, CNN Money, 8 Sep. 2026

An air quality alert is in effect, not for smoke, but for the ozone layer. — Lauren Bostwick, CBS News, 28 Aug. 2026

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