| Acronym | Meaning |
| NEDS | National Emission Data System (USEPA) |
| NDPK | Nucleoside Diphosphate Kinase |
| ERL/GB | Environmental Research Laboratory Gulf Breeze |
| UAM | Urban Airshed Model |
| HAI | Histol. Activity Index |
| ANNNI | Axial Next-nearest-neighbor Ising (model Of Superstructure) |
| IMB | Information Management Branch |
| RCC | Relativistic Coupled Cluster |
| HEDTA | Hydroxyethylethylenediaminetriacetic Acid |
| APR | Acoustic Paramagnetic Resonance |