| Acronym | Meaning |
| RSM | Reduction Symmetry Method (in Crystal Field Theory) |
| CLS | Characteristic Loss Spectroscopy |
| ALMR | Advanced Liquid Metal Reactor |
| CPD | Cyclobutane Pyrimidine Dimer |
| SEXAFS | Surface-extended X-ray Absorption Fine Structure |
| ARO | Analytical Radial Orbital |
| PHENIX | Pioneering High Energy Nuclear Interaction EXperiment |
| SSF | Slow Sand Filtration (water Treatment) |
| MO | Molecular Orbital |
| DO | Dissolved Oxygen |