| Acronym | Meaning |
| TPSA | Topological Surface Area |
| PUHF | (spin)-projected Unrestricted Hartree-Fock |
| CPCCSD | Coupled-perturbed Coupled-cluster (with) Single (and) Double Excitation |
| CEUG | Continental Epeirogenic Uplift Granitoids |
| RR | Relative Risk |
| VMAT | Vesicular Monoamine Transporter |
| ALR | Augmenter Of Liver Regeneration |
| IDE | Insulin Degrading Enzyme |
| MEDOC | Multipole Expansion Defined (on) One Center (a Wave Function In Calcns. On Atomic And Molecular Collisions) |
| GAO | General Accounting Office |