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.

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

American leadership in science, technology, and policy has been central to identifying these risks and driving actions that protect the ozone layer as well as the health and prosperity of the American people.

From Science Daily • Dec. 4, 2025

If Mars once had an ozone layer shielding its surface from ultraviolet radiation, that protective barrier could have made it far more hospitable to life billions of years ago.

From Science Daily • Oct. 19, 2025

They say that as more and more rockets are launched, the risks of harming the ozone layer increases.

From BBC • Apr. 14, 2025

Zeus’s gaze was as far away as the ozone layer.

From "Blood of Olympus" by Rick Riordan