| Acronym | Meaning |
| PIAMS | Photoionization Aerosol Mass Spectrometry |
| HTGR | High-Temperature Gas Reactor |
| IIRSM | International Institute Of Risk And Safety Management |
| AIMP | Ab Initio Model Potential (for Valence-electron Mol. Calcns.) |
| ESCPM | Electrochemical Scanning Probe Microscopy |
| IISI | International Iron And Steel Institute |
| AMSR | Advanced Microwave Scanning Radiometer |
| LVQ | Learning Vector Quantization |
| UCMP | Unrestricted Compact Model Potential |
| BMP | Bone Morphogenetic Proteins |