| Acronym | Meaning |
| SCA | Self-consistent Approximation |
| DEM | Discrete Element Method |
| RSC | Relative Source Contribution |
| HIPCO | High-pressure Carbon Monoxide |
| ARPA | Augmented Random Phase Approximation |
| FE | Fugitive Emissions |
| RGS | Regulator Of G-protein Signaling |
| IGGE | Institute Of Geophysical And Geochemical Exploration |
| VQP | Variable Quadratic Propagator (in Quantum Calcns.) |
| SCE | Semiclassical Exchange Approximation |