| Acronym | Meaning |
| EMSL | Environmental Monitoring Systems Laboratory |
| CS | Configuration Space (in Wave Functions) |
| MDA | Metal Deactivator |
| DMARD | Disease Modifying Antirheumatic Drug |
| SCP-IOS | Semiclassical Perturbation-infinite Order Sudden |
| SPB | Strong-potential Born (approxn. For At. Collision Calcns.) |
| VGP | Virtual Geomagnetic Pole |
| WALTZ | Wonderful Alternating Phase Technique For Zero Residual Splittings |
| DEBITS | Deposition Of Biogeochemically Important Trace Species |
| AMO MT | Alternant Molecular Orbital Matsubara-Toyozawa Method |