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English definition of “Aqua-Lung”

Aqua-Lung

noun [C] uk   /ˈæk.wə.lʌŋ/ trademark us  
a container of air that you carry on your back while swimming under the surface of the water, with a tube taking air to your mouth or nose to allow you to breatheSwimming
(Definition of Aqua-Lung from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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