aqua lung
/ˈækwə lʌŋ/
noun
- A portable breathing apparatus used for underwater diving, consisting of one or more tanks of compressed air and a regulator.
- She checked her aqua-lung before descending into the clear blue water.
- Modern aqua-lungs make it possible to explore coral reefs safely.
- The diver's aqua-lung allowed him to stay underwater for nearly an hour.
Synonyms