| Acronym | Meaning |
| MESQUAC-MO | Mixed Electrostatic Quantum Chemical Calculation-MO |
| NASQUAN | National Stream Water Quality Accounting Network |
| PFE | Pressurized Fluid Extraction |
| WCOT | Wall Coated Open Tubular Columns |
| NBSB | National Biomonitoring Specimen Bank |
| TPOT | Two-parameter Omega Technique |
| FGRM | Fourier-grid R-matrix Formalism (in Scattering Problems) |
| CUS | Coordinatively Unsaturated Site |
| COF | Coefficient Of Friction |
| SUVR | Solar Ultraviolet Radiation |