| Acronym | Meaning |
| PHF | Perturbative Hartree-Fock |
| SMOW | Standard Mean Ocean Water |
| ASP | Antisegregation Process |
| HUG | HART User Group |
| ASTDR | Agency For Toxic Substances And Disease Registry |
| PAC | Perturbed Angular Correlation |
| DTR | Diffusion Transfer Reversal |
| GHRF | Growth Hormone-releasing Factor |
| MPY | Miles Per Year |
| MATHEW | Mass-Consistent-3-Dimensional Wind Field |