| Acronym | Meaning |
| UCCD | (spin) Unrestricted Coupled Cluster (with) Double (excitations) |
| FOGO | Floating Orbital Geometry Optimization |
| GUS | Groundwater Ubiquity Score |
| QUAPI | Quasiadiabatic Propagator Path Integral Method |
| SCP | Sterol Carrier Protein |
| RAP | Receptor-associated Protein |
| PEO | Poly(ethylene Oxide) |
| AFC | Assimilation (with) Fractional Crystallization (geochemistry) |
| DIIS | Direct Inversion In The Iterative Space |
| BESOI | Bonded And Etched-back Silicon-on-insulator |