| Acronym | Meaning |
| ADST | Average Daily Soil Temperature |
| MICROSS | Micro-computer Based River Oil Spill Simulation |
| UKB | Unrestricted Kinetic Balance (in Calcns. Of Wave Functions And Energies) |
| CCMC-T2 | Coupled-cluster Multiconfigurational (double-excitation Method With Cluster Operator Approximated By T2) |
| QMC | Quantum Monte-Carlo (theory For Many-electron Atoms And Mols.) |
| SPU | Segmented Polyurethane |
| PFE | Pressurized Fluid Extraction |
| SPINDO | Spectroscopic Potentials Adjusted Intermediate Neglect Of Differential Overlap |
| ASCE | American Society Of Civil Engineers |
| GWDR | Ground Water Disinfection Rule |