| Acronym | Meaning |
| AQS | Ambient Quality Standard |
| SCEP | Self-consistent Electron-pair Theory |
| FLASH | Fast Low-angle Shot (NMR Imaging) |
| LSDFT | Local Spin Density Functional Theory |
| NDCEE | National Defense Center For Environmental Excellence |
| NECTAR | National Electronic Clinical Trials And Research |
| SMA | Spinal Muscular Atrophy |
| IR | Isoprene Rubber |
| GIMS | Grazing Incidence Moessbauer Spectroscopy |
| SCID | Severe Combined Immunodeficiency |