The list of underwater acronyms and abbreviations.
All underwater related acronyms and abbreviations.
290 entries under topic. ×
NSS-CDS: | National Speleological Society-Cave Diving Section(Scuba diving) |
OD: | Ocean Diver(Scuba diving, Diving, Underwater) |
OMS: | Ocean Management Systems(Scuba diving, Diving, Underwater) |
OOA: | Out of Air(Scuba diving, Diving, Underwater) |
OS: | O.S. Systems, Inc.(Scuba diving, Diving, Underwater) |
OTT: | Oxygen Tolerance Test(Scuba diving, Diving, Underwater) |
OTU: | Oxygen Toxicity Unit(Dive gear, Scuba diving, Diving) |
OW: | Open Water(Scuba diving, Diving, Underwater) |
OWD: | Open Water Diver(Scuba diving, Diving, Underwater) |
OWI: | Open Water Instructor(Scuba diving, Diving, Underwater) |
OWIC: | Open Water Instructor Course(Scuba diving, Diving, Underwater) |
OWSI: | Open Water Scuba Instructor(Scuba diving, Diving, Underwater) |
P: | Pressure(Scuba diving, Diving, Underwater) |
PADUA: | Pennsylvania Analysis of Decompression for Undersea and Aerospace |
PDC: | Personal Dive Computer(Scuba diving, Diving, Underwater) |
PDIC: | Professional Diving Instructors Corporation(Scuba diving, Diving) |
PFO: | Patent Foramen Ovale(Scuba diving, Diving, Underwater) |
PG: | Pressure Group(Scuba diving, Diving, Underwater) |
PP: | Partial Pressure(Scuba diving, Diving, Underwater) |
PPB: | Peak Performance Buoyancy(Scuba diving, Diving, Underwater) |
For more, try UNDERWATER on ALL ACRONYMS DICTIONARY
| APA | Smart Define. (2018). underwater. Retrieved September 30, 2026, from http://smartdefine.org/underwater/abbreviations/r/diving |
| Chicago | Smart Define. 2018. "underwater" http://smartdefine.org/underwater/abbreviations/r/diving (accessed September 30, 2026). |
| Harvard | Smart Define 2018, underwater, Smart Define, viewed 30 September, 2026, <http://smartdefine.org/underwater/abbreviations/r/diving>. |
| MLA | Smart Define. "underwater" 12 January 2018. Web. 30 September 2026. <http://smartdefine.org/underwater/abbreviations/r/diving> |