| Acronym | Meaning |
| MS | Molecular Spinor |
| MASH | MgO-Al2O3-SiO2-H2O System |
| MR-SAC | Multireference Symmetry-adapted-cluster (quantum Theory Or Wave Function For Mol. Calcns.) |
| LAKE | Clean Lakes Database (accessible Through OLS) |
| ILAC | International Laboratory Accreditation Cooperation |
| MUSAC | Measurement Uncertainty Software In Analytical Chemistry |
| SRA | Sudden Rotation Approximation |
| PGWDB | Pesticides In Ground Water Database |
| TRAPDOR | Transfer Of Populations In Double Resonance |
| BMC | Benchmark Concentration |