| Acronym | Meaning |
| DAS | Days After Sowing |
| FRSS | Federal Register Search System |
| GI | Many Electron Wave Functions That Are Simultaneously Eigen-functions Of The Total Spin Projection Operators And Satisfy The Pa |
| PDGF | Platelet-derived Growth Factor |
| MEM | Maximum Entropy Method |
| USN | Ultrasonic Nebulizer |
| OSW | Office Of Solid Waste (US EPA) |
| SSF | Synchronous Scanning Fluorescence |
| BELLE | Biological Effects Of Low Level Exposures |
| IRZ | Immediate Response Zone |