Definition of oxygen mask in English:
A mask placed over the nose and mouth and connected to a supply of oxygen, used when the body is not able to gain enough oxygen by breathing air, for example, at high altitudes or because of a medical condition.
- When you wake up you may find that you have an oxygen mask over your mouth and nose.
- The next thing I knew I was in a hospital bed with an oxygen mask over my mouth and nose.
- A man is lying in bed in a Catholic hospital with an oxygen mask over his mouth.
Definition of oxygen mask in:
- British & World English dictionary