| Acronym | Meaning |
| SESFOD | Selective Excitation With Single Frequency Off Resonance Decoupling |
| ABRF | Association Of Biomolecular Resource Facilities |
| MAFIAS | Micro Ammonia Flow Injection Analysis System |
| NADB | National Air Data Branch (US EPA) |
| DEMA | Diesel Engine Manufacturers Association |
| PEPECO | Photoelectron-photoelectron Coincidence |
| ISCAT | Investigation Of Sulfur Chemistry In The Antarctic Troposphere |
| ASEMP | Active Sites Environmental Monitoring Program |
| ESR | Electron Spin Resonance |
| ORSTB | Overlap-reduced Semiempirical Tight-binding |