| Acronym | Meaning |
| NOM | Natural Organic Matter |
| KVP | Kohn Variational Principle |
| EMF | Electromotive Force |
| PDFT | Perturbation Density-functional Theory |
| ACD | Available Chemicals Directory |
| LFCC | Laboratory-frame Close-coupling (for Electron-mol. Scattering) |
| WARMF | Watershed Anal. Risk Management Framework |
| DIAL | Differential Absorption Lidar (laser Radar Sensing) |
| ICSTI | International Center For Scientific And Technical Information (Moscow |
| CTPGF | Closed Time Path Green Function (in Many-body Theory) |