| Acronym | Meaning |
| PAA | Photon Activation Analysis |
| CTBTO | Comprehensive Nuclear-Test-Ban Treaty Organization |
| MDW | Multichannel Distorted Wave (Born Approxn.) |
| SETOC | International Sediment Exchange For Tests On Organic Contaminants |
| ELSD | Evaporative Light Scattering Detector |
| NSIDC | National Snow And Ice Data Center (University Of Colorado) |
| SCE | Sister Chromatid Exchange |
| RFA | Regulatory Flexibility Analysis |
| HERV | Human Endogenous Retrovirus |
| SFORD | Single Frequency Off Resonance Decoupling |