a layer of ozone in the Earth’s atmosphere that protects the Earth from the heat of the sun. Pollution in the air has caused holes to appear in the ozone layer.
Synonyms and related words
The Earth’s atmosphere
aerospace
the air
atmosphere
ozone layer
noun singular
US
DEFINITIONS1
1
a layer of ozone in the Earth’s atmosphere that protects the Earth from the heat of the sun. Pollution in the air has caused holes to appear in the ozone layer.