| Acronym | Meaning |
| DZD | (double Zeta)-diffuse (basis Set In Configuration-mixing MO Calcns. On Mols.) |
| FPI | Fourier Path Integral |
| CPMP | Committee For Proprietary Medical Products |
| RAINS | Regional Acidification Information And Simulation |
| AEDE | Annual Effective Dose Equivalent |
| PEIA | Programmatic Environmental Impact Analysis |
| DASCO | Discriminant Analysis With Shrunken Covariances |
| TFA | Target Factor Analysis |
| FAIMS | High-field Asymmetric Waveform Ion Mobility Spectrometry |
| RIOSA | Reactive Infinite-order Sudden Approxn. |