| Acronym | Meaning |
| UHF | Ultra-high Frequency |
| ECEC | European Center For Environmental Communication |
| AST | Aspartate Aminotransferase |
| SBA | Second Born Approximation |
| STN | Super Twisted Nematic |
| THM | Traveling Heater Method |
| UMO | Unmodified Molecular Orbital |
| BAER | Brainstem Auditory Evoked Response |
| MCRPA | Multiconfigurational Random Phase Approxn. |
| AEHA | Army Environmental Hygiene Agency |