| Acronym | Meaning |
| DCAP | Decompression Computation And Analysis Program |
| OWI | Open Water Instructor (BSAC) |
| SCUHA | Self-contained Underwater Heating Apparatus (urinating In Your Wet Suit). |
| PPB | Peak Performance Bouyancy |
| AGE | Aterial Gas Embolism |
| EAN(X) | Enriched Air Nitrox |
| TP | Test Pressure |
| MSDT | Master SCUBA Diver Trainer (PADI) |
| MDL | No Decompression Limit |
| SCUBA | Self Contained Underwater Breathing Aparatus |