| Acronym | Meaning |
| APIOS | Acid Precipitation In Ontario Study |
| MOSFET | Metal Oxide Semiconductor Field Effect Transistor |
| AIM | Adiabatic Invariance Method (in Ion-mol. Reactions) |
| D-SIC | Degeneracy-dependent Self-interaction Correction |
| FCHF | Frozen-core Hartree-Fock |
| CET | Collisional Energy Transfer |
| STEP | Solar Terrestrial Energy Program |
| TNLCD | Twisted Nematic Liquid Crystal Display |
| LFS | Li-Fraumeni Syndrome |
| TOR | Tropospheric Ozone Research |