| Acronym | Meaning |
| BOF | Basic Oxygen Furnace |
| SOP | Second-order Potential (method For Positron-atom Scattering) |
| CCSR | Calcium Carbonate Saturation Ratio |
| HRMAS | High-resolution Magic-angle Spinning |
| ANITA | Ammonia And Nitrification Analyzer |
| PFDT | Partial Flow Dilution Tunnel |
| APYS | Auger-electron Partial Yield Spectroscopy |
| GHF | Generalized Hartree-Fock Method |
| DOUBTFUL | Double Quantum Transitions For Finding Unresolved Lines |
| SOGVB | Strongly-orthogonal Generalized Valence-bond (wave Function) |