| Acronym | Meaning |
| NTN | National Trends Network |
| BA | Best Atom (basis Set) |
| AOIPS | Atmospheric And Oceanographic Information Processing System |
| FMF | Frozen Molecular Fragment (method In Calcn. Of Intermol. Potentials And Charge Distributions) |
| YSAG | Yttrium Scandium Aluminum Garnet |
| MOV | Metal-Oxide Varistor |
| HESS | High Energy Stereoscopic System |
| RSCPA | Reduced (second Order) Self-consistent Phonon Approxn. (a Green-function Calcn. Method) |
| DOMO | Doubly Occupied Molecular Orbital |
| HEAL | Human Exposure Assessment Location |