Aqua-Lung
or Aq·ua Lung
[ak-wuh-luhng, ah-kwuh-]
Trademark.
a brand of underwater breathing apparatus for a swimmer or skin-diver, consisting of a cylinder of compressed air that is strapped to the back, a flexible tube connecting the cylinder with the swimmer's mouth, and an automatic pressure regulator that controls the flow of air into the lungs.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019