| Acronym | Meaning |
| APIG | Antisymmetrized Product (of) Identical Geminals |
| SCA | Specific Collection Areas |
| LIR | Limiting Infiltration Rate |
| GHCN | Global Historical Climatology Network |
| BALR | Broad Absorption Line Region |
| EBMUD | East Bay Municipal Utility District (Oakland |
| MPT | Mitochondrial Permeability Transition |
| TOVS | TIROS Operational Vertical Sounder |
| ISLSCP | International Satellite Land Surface Climatology Project |
| HSA | Hyperspherical Adiabatic (for Resonances In Electron-atom Scattering. Energy Levels |