| Acronym | Meaning |
| FAKE | Fast Accurate Kinetic-energy (MO Method) |
| NCID | National Center For Infectious Diseases |
| DOD | Department Of Defense |
| POY | Partially Oriented Yarn (usually Synthetics |
| MERIS | Medium Resolution Imaging Spectrometer |
| IMBPT | Interaction Many-body Perturbation Theory |
| IHSS | International Humic Substances Society |
| APDG | Antisymmetrized Product Of Delocalized Geminals (wave Function) |
| ECVAM | European Center For The Validation Of Alternative Methods |
| FOE | First-order Exchange (in Electron-atom Scattering Calcn.) |