| Acronym | Meaning |
| GEOS | General Earthquake Observation System |
| QLGM | Quantum Lattice Gas Model (in Helium Superfluid Transition Temperature In Zeolite Pores) |
| CISDTQ | Configuration Interaction With Single |
| AUBF | Anaerobic Upflow Biofilter |
| PDI | Polarization-division Interferometry |
| MCP | Model Core Potential |
| PSCF | Potential Source Contribution Function |
| BWEN | Brillouin-Wigner (second-order Perturbation Theory With) Epstein-Nesbet (energy Denominators) |
| SCAMPI | Statistical Classification Of Activities Of Molecules For Pharmacophore Identification |
| CMOS | Complementary Metal Oxide Semiconductor |