| Acronym | Meaning |
| CPAP | Continuous Positive Airway Pressure |
| OEP | Odd-even (alkane/carbon) Predominance (geology) |
| EDGAR | Emissions Database For Global Atm. Research |
| SLR | Spin-lattice Relaxation |
| VBM | Valence-band Model (in Electronic Structure Calcns.) |
| PITST | Path Integral Transition State Theory |
| LBE | Lance Bubbling Equil. |
| PWHT | Post-weld Heat Treatment |
| GOSAC | Global Ocean Storage Of Anthropogenic Carbon |
| GEK | Geomagnetic Electrokinetograph |