or Aq·ua Lung

[ ak-wuh-luhng, ah-kwuh- ]
/ ˈæk wəˌlʌŋ, ˈɑ kwə- /


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. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for aqualung

  • He was suddenly impatient to get going, to put on his aqualung and explore the reef from top to bottom.

    The Wailing Octopus|Harold Leland Goodwin

British Dictionary definitions for aqualung

/ (ˈækwəˌlʌŋ) /


breathing apparatus used by divers, etc, consisting of a mouthpiece attached to air cylinders strapped to the back
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012