| Acronym | Meaning |
| POPW | Partially Orthogonalized Plane Wave |
| PCET | Proton-coupled Electron Transfer |
| THMFP | Trihalomethane Formation Potential |
| MCNP | General Monte Carlo Code For Neutron And Photon Transport |
| MIP | Magnetic Induced Polarization (for Subsurface Characterization) |
| TDSHF | Time-dependent Screened Hartree-Fock |
| CV | Calibrated Volume |
| OETP | Orbiter Electron Temp. Probe |
| IMF | Interplanetary Magnetic Field |
| EMA | Effective Medium Approximation |