| Acronym | Meaning |
| SSB | Semiclassical Sudden Born (approxn. In Ion-atom Collisions) |
| OSF | Odor Safety Factor |
| MLCK | Myosin Light Chain Kinase |
| S-MPPT | Supermolecular Moeller-Plesset Perturbation Theory |
| NSTL | Near Surface Transition Layer |
| RBSC | Reaction-bonded Silicon Carbide |
| NEA | Nuclear Energy Agency |
| SSF | Slow Sand Filtration (water Treatment) |
| ORPP | Optimized Relativistic Pseudopotential |
| LST | Laser Scattering Tomography |