(n)a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus, Syn.scuba, Aqua-Lung
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
n. an apparatus containing compressed air or other oxygen-gas mixture, permitting a person to breathe under water; -- also called a scuba. Syn. -- scuba [ WordNet 1.5 +PJC ]