scuba

Meanings

1. 1
   noun

   a device that lets divers breathe under water

   Scuba is an acronym for self-contained underwater breathing apparatus.

2. 2
   noun

   An apparatus carried by a diver, which includes a tank holding compressed, filtered air and a regulator which delivers the air to the diver at ambient pressure which can be used underwater.

3. 3
   verb

   To perform scuba diving.

4. 4
   noun

   Alternative letter-case form of scuba.

Etymology

From SCUBA, acronym of self-contained underwater breathing apparatus; now usually viewed as anacronymic.