| Acronym | Meaning |
| REX | Relativistically Parametrized Extended Hueckel |
| MIDDAS | Microdiameter Depth Adsorption Systems |
| AOT60 | Accumulated Ozone Exposure Above A Threshold Value Of 60 Ppb |
| SVE | Selected Valence Electron Model |
| DODEC | Department Of Defense Environmental Contamination |
| NDT | Nil Ductility Temperature |
| I&C | Instrumentation And Control |
| PREVENT | Pacific Northwest Regional Visibility Expt. Using Natural Tracers |
| IWOP | Integration Within (an Ordered Product Of) Operators |
| CGDN | Canadian Genetic Diseases Network |