| Acronym | Meaning |
| CME | Community Modelling Effort |
| SAMO | Simulated Ab Initio Molecular Orbital |
| IF DRM | Inversion-free Direct Recursion Method (for Surface Electronic Structure) |
| PIRG | Public Interest Research Group |
| TEOM | Tapered Element Oscillating Microbalance |
| HPI | Hazard Potential Index |
| XRMA | X-ray Microanalysis |
| ELLAP | Environmental Lead Laboratory Accreditation Program |
| SPA | Shielded-potential Approxn. (in Electronic Structure) |
| RIM | Reaction-injection Molding |