| Acronym | Meaning |
| RMP | Relativistic Model Potential |
| HAM/N | Hydrogenic Atoms In Molecules |
| ROHF | Restricted Open-shell Hartree-Fock |
| OASIS | Ocean And Atmospheric Sounding Interferometer System |
| AQRV | Air Quality Related Values |
| CDRE | Convolution Difference Resolution Enhancement |
| APM | Atom Probe Microanalysis |
| 3P | Pollution Prevention Pays |
| FBCB | Fixed Bed Circulating Bioreactor (for Wastewater Treatment) |
| DASP | Discontinuous Activated Sludge Process |