| Acronym | Meaning |
| SFS | Sum-frequency Spectroscopy |
| BEST | Bare Essentials Of Surface Transfer |
| RKB | Restricted Kinetic Balance (method In Calcns. Of Wave Functions And Energies) |
| OSBG | Optimized Support For Biological Growth |
| NRT | National Response Team |
| AIMD | Ab Initio Molecular Dynamics |
| HMM | Hidden Markov Model |
| MCGR | Monte-Carlo Renormalization Group |
| PGWDB | Pesticides In Ground Water Database |
| MOVS | Molecular Orbital Valence State |