aq·ua·lung
noun/ˈækwəlʌŋ/
/ˈɑːkwəlʌŋ/
(US English also Aqualung™)
- a piece of breathing equipment that a diver wears on his/her back when swimming underwater
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Topics Sports: water sportsc2轻便潜水器;水肺 Word Origin1950s (originally a proprietary name in the US): from Latin aqua ‘water’ + lung.