| Acronym | Meaning |
| PARISS | Prism And Reflector Imaging Spectroscopy System |
| BS | Breathing Sphere (approxn. In Mol.-scattering Calcns.) |
| AL:PE | Acidification Of Mountain Lakes: Paleolimnol. And Ecol. |
| FSMRCCSD | Fock Space Multireference Coupled Cluster (with) Single (and) Double Excitations |
| DIN | Dissolved Inorganic Nitrogen |
| CPSA | Consumer Product Safety Act |
| BSTR | Batch Stirred Tank Reactor |
| ANLL | Acute Nonlymphocytic Leukemia |
| NURE | National Uranium And Resource Evaluation |
| CNDO | Complete Neglect Of Differential Overlap |