| Acronym | Meaning |
| PAR | Population At Risk |
| DNC | Delayed Neutron Counting |
| WFI | Water For Injection (pharmaceutical Term) |
| BAIR | Biological Atlas Of Insulin Resistance |
| CDDIS | Crustal Dynamics Data Information System |
| MET | Multichannel Eikonal Theory (in Atom Electron-impact Excitation) |
| EMS | Electromagnetic Susceptibility |
| PSID | Photon Stimulated Ion Desorption |
| SLIME | Spin-locked Inversion Mid-echo |
| ISEC | Inverse Size-exclusion Chromatography |