| Acronym | Meaning |
| HITRAN | High-Resolution Transmission Molecular Absorption Database |
| EDF | Energy Density Functional (theory In Electronic-property Calcn.) |
| PRESS | Prediction Error Sum Of Squares |
| SAMS | Stratospheric And Mesospheric Sounder |
| VRE | Vancomycin-resistant Enterococci |
| GEF | Guanine Nucleotide Exchange Factor |
| VBM | Valence-band Model (in Electronic Structure Calcns.) |
| NHRL | Northern Hemisphere Reference Line |
| ACPQ | Approx. Coupled-pair (theory Cor. For Connected) Quadruply (excited Clusters) |
| MSA | Mean Spherical Approxn. |