| Acronym | Meaning |
| OLCAO | Orthogonalized Linear Combination Of Atomic Orbitals |
| LCTV | Liquid Crystal Television |
| DTFBR | Draft Tube Fluidized Bed Reactor |
| UNEP | United Nations Environmental Program |
| ASTER | Advanced Spaceborne Thermal Emission And Reflection Radiometer (EOS) |
| BNA | Bureau Of National Affairs |
| IAES | Ion Excited Auger Electron Spectroscopy |
| IMAGE | International Monitor For Auroral Geomagnetic Effects |
| CPBE | Coulomb-projected Born Approxn. With Exchange |
| IMAPS | Interstellar Medium Absorption Profile Spectrograph |