| Acronym | Meaning |
| CMZP | Calcium Magnesium Zirconium Phosphate |
| ILAP | Inter-Laboratory Analysis Program |
| MCP | Microchannel Plate |
| PAOD | Peripheral Arterial Occlusive Disease |
| RSCA | Relativistic Semiclassical Approximation (for At. Scattering) |
| TRAXS | Total Reflection Angle X-ray Spectroscopy |
| VBXPS | Valence Bond X-ray Photoelectron Spectroscopy |
| USPC | Unoccupied-states Potential Correction |
| OIT | Oxidative Induction Time |
| PSC | Polar Stratospheric Clouds (in Antarctic) |