| Acronym | Meaning |
| RBF | Renal Blood Flow |
| RBAO | Reaction-bonded Aluminum Oxide |
| MO | Molecular Orbital |
| PCEM | Point-charge Electrostatic Model |
| FIGLU | Formiminoglutamic Acid |
| SAPRC | Statewide Air Pollution Research Center |
| AEROCE | Atmosphere-Ocean Chemistry Experiment |
| RNRA | Resonant Nuclear Reaction Analysis |
| SME | Static Model Exchange (approxn. In Electron-mol. Scattering) |
| MEMTB | Many-electron Mol. Tight-binding (for Electronic Structures) |