noun

ozone

ozone

The ozone layer protects us from the sun.

The ozone layer protects us from the sun.

I could smell the ozone after the thunderstorm.

I could smell the ozone after the thunderstorm.

((the ozone layer)) the layer of ozone in the atmosphere The ozone layer is important.

Synonyms: trioxygen.

From Greek 'ozein' (to smell), named for its distinctive smell after a thunderstorm.

Think of the 'O-zone' as a special zone in the atmosphere. The three 'o's in the word can remind you it's O3.

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