| Acronym | Meaning |
| DEIS | Draft Environmental Impact Statement |
| AMBIENS | Atmospheric Mass Balance Of Industrially Emitted And Natural Sulfur |
| RUP | Rumen-undegradable Protein |
| SANDS | Stratospheric Aitken Nuclei Detection System |
| RAA | Rigid-atom Approxn. (in Electronic Structure Calcns.) |
| PHIP | Para-Hydrogen Induced Polarization |
| HSF | Hiller-Sucher-Feinberg (equation For Calcn. Of Spin Densities And Charge Densities In Mols.) |
| WATCH | Working Group On Assessment Of Toxic Chemicals |
| CMI | Cell-mediated Immunity |
| SPU | Segmented Polyurethane |