| Acronym | Meaning |
| ILAP | Inter-Laboratory Analysis Program |
| ARAC | Acid Rain Advisory Committee |
| DHMS | Dense Hydrous Magnesium Silicates |
| PSII | Photosystem II |
| MBPM | Maximum Bubble Pressure Method |
| ACF | Anticoagulant Factor |
| PRV | Pseudorabies Virus |
| AEMA | Auger Electron Microanalysis |
| TDOPM | Time-dependent Optimized Potential Method |
| RNO | Reaction Natural Orbital |