A device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus(noun)
WordNet. Princeton University. 2010.
Use "aqua-lung" in a sentence
"He was a pioneer who broke barriers with his inventions such as the aqua-lung, scuba diving apparatuses and submersibles; his name became synonymous with underwater exploration, ocean photography and conservation; and I believe he did more than anyone to enlighten the world about the complexity of the ocean's ecology and the importance of preserving it."
"Cousteau was the pioneering French oceanographer and filmmaker as well as a French naval officer, explorer, ecologist, scientist, photographer, author and researcher who even developed the aqua-lung."
"Jacques Cousteau is credited with major improvements in scuba gear, and generally seen as the father of the aqua-lung and modern diving."