| Acronym | Meaning |
| QDT | Quantum-defect Theory |
| SPELL | Spectral Eulerian Lagrangian Model |
| BHT | Brinell Hardness Test |
| GIPME | Global Investigation Of Pollution In The Marine Environment |
| PAO | Pseudo-atomic Orbital |
| RF | Response Factor |
| IMPROVE | Interagency Monitoring For Protected Visual Environments |
| EPKR | Electrochem. Polarization Kinetic Reactivation |
| ESR | Electron Spin Resonance |
| DONUT | Direct Observation Of The Nu Tau |