| Acronym | Meaning |
| KKT | Kramers-Kronig Transformation |
| LST | Light Scattering Tomography |
| UVCS | UV Coronagraph Spectrometer |
| AAR | Accumulation-area Ratio (for Glaciers) |
| ALAPCO | Association Of Local Air Pollution Control Officials |
| STOCSY | Statistical Total Correlation Spectroscopy |
| SQL | Standard Quantum Limit |
| OVGF | Outer-valence Green Function (for Ionization-energy Calcns.) |
| SPOT | Satellite Pour L'Observation De La Terre |
| SEAREX | Sea/Air Exchange Program |