B1nounsciencehealth
US/ˈɑːk.sɪ.dʒən/
UK/ˈɒk.sɪ.dʒən/
a gas in the air that people, animals and plants need to live
In context
Plants take in carbon dioxide and release oxygen during the day.
The patient was given oxygen because she couldn't breathe properly.
At the top of the mountain there is less oxygen, so walking is tiring.
Words that go with oxygen
noun + noun
- oxygen maskPut on your own oxygen mask before helping others.
- oxygen levelsThe doctor checked his oxygen levels every hour.
- oxygen tankDivers carry an oxygen tank on their backs.
noun + preposition
- lack of oxygenThe fish died from a lack of oxygen in the water.
- supply of oxygenThe brain needs a constant supply of oxygen.