ozone layer

[oh-zohn ley-er] / ˈoʊ zoʊn ˈleɪ ər /

NOUN

upper layer of atmosphere

Synonyms

WEAK

isothermal layer ozone ozonosphere

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The concern over ozone depletion dates back to 1985, when scientists identified a growing hole in the ozone layer above Antarctica.

From Science Daily • Apr. 16, 2026

He draws parallels to chlorofluorocarbons pollutants released from refrigerators that bore a hole in the ozone layer last century, and were eventually banned.

From BBC • Feb. 19, 2026

"Our largest concern is aluminium and aluminium oxides interacting with the ozone layer," Wing says.

From BBC • Feb. 19, 2026

Keeping an eye on the ozone layer takes a team of observing systems spread across the globe.

From Science Daily • Dec. 4, 2025

In addition to war and crime and cruelty, we have to worry about environmental problems—about pollution, the growing hole in the ozone layer, the greenhouse effect, and global warming.

From "My Life with the Chimpanzees" by Jane Goodall