| Acronym | Meaning |
| SAGE II | Stratospheric Aerosol And Gas Expt. II |
| NSO | Natural Spin Orbitals |
| CPAC | Center For Process Analytical Chemistry |
| BIOS | British Intelligence Objectives Sub-committee |
| CSRS | Cooperative State Research Service (US Dept. Of Agriculture) |
| NMMAPS II | The National Morbidity |
| SHT | Surface Hopping Trajectory (model For Mol. Scattering) |
| NPRA | National Petroleum Refiners Association |
| CST | Capillary Suction Time (sludge Dewatering Parameter) |
| SESFOD | Selective Excitation With Single Frequency Off Resonance Decoupling |