"scubas" in the noun sense
1. aqualung, Aqua-Lung, scuba
a device (trade name Aqua-Lung) that lets divers breathe under water scuba is an acronym for self-contained underwater breathing apparatus
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License