Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun aqualung

1 sense of aqualung

Sense 1
aqualung, Aqua-Lung, scuba -- (a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus)
       => breathing device, breathing apparatus, breathing machine, ventilator -- (a device that facilitates breathing in cases of respiratory failure)