| Acronym | Meaning |
| CPAA | Charged Particle Activation Analysis |
| IMS | Ion Mass Spectrometer |
| FBR | Fixed Bed Reactor |
| MAOP | Maximum Allowable Operating Pressure |
| VOST | Volatile Organic Sampling Train |
| KAM | Kolmogorov-Arnold-Moser (theorem In Quantum Stochasticity) |
| ICF | Inertial Confinement Fusion |
| PSD | Prevention Of Significant Deterioration |
| PMMA | Poly (methyl Methacrylate) |
| PNO | Pseudonatural Orbital |