| Acronym | Meaning |
| GPS | Generalized Phase Shift Formalism |
| ATDHF | Adiabatic Time-dependent Hartree-Fock |
| SBAR | Sequencing Batch Anaerobic Reactor(s) |
| ACRS | Applied Computational Research Society |
| SIEC | Spherical Inertial Electrostatic Confinement |
| STEM | Scaled Taylor Exponential Model |
| PWM | Pokeweed Mitogen |
| SPALEED | Spot Profile Analysis Low Energy Electron Diffraction |
| MIQ | Minimum Identifiable Quantities |
| CETTP | Complex Effluent Toxicity Testing Program (US EPA) |