| Acronym | Meaning |
| SRIM | Structural Reaction Injection Molding |
| PCI | Peripheral Component Interconnect |
| OIP | Optimized Inner Projection (method For Mol. Property Calcns.) |
| MPI | Multiphoton Ionization |
| NIDDM | Non-insulin-dependent Diabetes Mellitus |
| TRMM | Tropical Rainfall Measuring Mission |
| ORAU | Oxford Radiocarbon Accelerator Unit (University Of Oxford) |
| GISPRI | Global Industrial And Social Progress Institute (Japan) |
| SMSX(ALPHA) | Overlapping-sphere Multiple-scattering X(alpha) |
| LNDO | Local Neglect Of Differential Overlap |