| Acronym | Meaning |
| MMI | Mucous Membrane Effects |
| NOM | Natural Organic Matter |
| CIS | Commonwealth Of Independent States |
| VLHC | Very Large Hadron Collider |
| RARE | Rapid Acquisition Relaxation-enhanced |
| DCM | Decoupled Cell Monte Carlo (in Simulations On Quantum Systems) |
| MLS | Molecular Luminescence Spectroscopy |
| OP | Overlap Population |
| VPM | Variable Phase Method (for Electron-atom Scattering Calcns.) |
| SCFA | Short Chain Fatty Acid |