| Acronym | Meaning |
| MOU | Memorandum Of Understanding |
| RCP | Recursive Correlation Partitioning |
| ADP | Adenosine Diphosphate (RN 58-64-0) |
| LORG | Localized Orbital-local Origin |
| AACC | American Association For Clinical Chemistry |
| SME | Static Model Exchange (approxn. In Electron-mol. Scattering) |
| POLINAT | Pollution From Aircraft Emissions In The North Atlantic Flight Corridor |
| ATAD | Auto Thermal Aerobic Digestion |
| SOMBT | Second-order Many-body Theory |
| POSSUM | Protein Online Substructure Searching - Ullman Method |