| Acronym | Meaning |
| GT | Gelfand-Tsetlin Basis Function |
| LSDXS-SIC | Local-spin-density (with) Screened Exchange (and) Self-interactiond Correction |
| FLAA | Flame Atomic Absorption |
| QBO | Quasi-biennial Oscillation (atm.) |
| PVS | Performance Verification Sample |
| PR | Preliminary Review |
| LIR | Limiting Infiltration Rate |
| HGF | Hermite Gaussian Function |
| MLSS | Mixed Liquor Suspended Solids |
| LEAP | Local-electrode Atom Probe |