aqualung
/ˈakwəlʌŋ
/(also US trademark Aqua-Lung)
noun
A portable breathing apparatus for divers, consisting of cylinders of compressed air strapped on the diver’s back, feeding air automatically through a mask or mouthpiece.The modus operandi, they said, was for divers with aqualungs to collect perlemoen which they then took ashore at dusk in sacks and left in a hideout in the bush and dunes....
- She pulled out the mouthpiece of her aqualung, briefly, and shouted his name into the water.
- If I went, and I would, I'd want the full suit, with an aqualung and a parachute.
verb [no object] dated
Swim under water using an aqualung: you oughtn’t to aqualung by yourself...
- If the water flows into the room, grab the tanks and get aqualunging.
Origin
1950s (originally a proprietary name in the US): from Latin aqua 'water' + lung.