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[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 Dictionary, © Random House, Inc. 2015.
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Examples from the web for aqualung
  • aqualung may come up for so fresh air, with your help.
  • The hairs of its abdomen trap a silvery bubble of air so the spider can breathe as if it were wearing an aqualung.
  • Attracted to danger, he tried scuba diving, went spear fishing with an aqualung and loved drag racing.
British Dictionary definitions for aqualung


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
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Word Origin and History for aqualung

1950, from aqua- + lung. Developed 1943 by Jacques Cousteau and Emile Gagnan.

Online Etymology Dictionary, © 2010 Douglas Harper
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