| Acronym | Meaning |
| PSD | Prevention Of Significant Deterioration |
| NPC | Nasopharyngeal Carcinoma |
| CWC | United Nations Chemical Weapons Convention |
| POAV | Pi Orbital Axis Vector Analysis (electronic-structure Model) |
| BCIRA | British Cast Iron Research Association |
| NSWMA | National Solid Wastes Management Association |
| ECP | Effective Core Potential Approxn.(in Electronic-structure Calcn.) |
| BIC | Bragg Ionization Chamber |
| LTMPF | Low-Temperature Microgravity Physics Facility |
| PCN | Polychlorinated Naphthalene |