| Acronym | Meaning |
| LBD | Ligand Binding Domain |
| MSP | Manganese Stabilizing Protein |
| NAEG | Nevada Applied Ecology Group (of US Department Of Energy) |
| FIMS | Fine-split IR Multispectral Scanner (for Remote Sensing) |
| GMA | Glycidyl Methacrylate |
| TIMI | Thrombolysis In Myocardial Infarction |
| OIT | Oxidative Induction Time |
| IEV | Independent Event (model In Ion-atom Collisions) |
| ARMI | Analytical Reference Materials International |
| UIHRS | Upflow Inclined High-rate Settlers |