| Acronym | Meaning |
| NHEJ | Nonhomologous End Joining |
| RNA | Remediation By Natural Attenuation |
| ASED | Atom Superposition-electron Delocalization |
| BS | Breathing Sphere (approxn. In Mol.-scattering Calcns.) |
| IRMDR | Infrared Microwave Double Resonance |
| GFQMC | Green Function Quantum Monte Carlo |
| ASCA | Automatic Subject Citation Alert |
| GOCART | Georgia Tech/Goddard Global Ozone Chem. Aerosol Radiation And Transport Model |
| USEPA | United States Environmental Protection Agency |
| HFCC | Hyperfine Coupling Constant |