| Acronym | Meaning |
| PIN | Pesticide Information Network |
| CSF | Cerebrospinal Fluid |
| EPIC | Erosion-productivity Impact Calculator |
| MOZAIC | Measurement Of Ozone And Water Vapor By Airbus In-Service Aircraft |
| DDRP | Direct Delayed Response Program (for Long Term Effects Of Acid Rain) |
| BBB | Blood-brain Barrier |
| SXRF | Synchrotron X-ray Fluorescence |
| TAC | Total Antioxidn. Capacity |
| CWM | Coal Water Mixture |
| RTFDW | Relativistic Thomas-Fermi-Dirac-Weizsaecker (electron-d. Theory) |