Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A portable apparatus containing compressed air and used for breathing under water.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An apparatus carried by a diver, which includes a tank holding a mixture of oxygen and other gases, used for breathing underwater.
  • v. To perform scuba diving.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus

Etymologies

s(elf-)c(ontained) u(nderwater) b(reathing) a(pparatus).
(American Heritage® Dictionary of the English Language, Fourth Edition)
Acronym of self-contained underwater breathing apparatus (Wiktionary)

Examples

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  • April 1, 2008

  • Self Contained Underwater Breathing Apparatus

    February 28, 2007