| Acronym | Meaning |
| MOSES | Mineral Oil Spill Evaluation System |
| HLPSA | Hazardous Liquid Pipeline Safety Act |
| IWG | International Working Group |
| PEDS | Plasma-enhanced Deposition System |
| IRS | Inverse Raman Scattering |
| GCLSDA | Gradient-corrected Local Spin Density Approximation |
| HSK | Hylleraas Scherr Knight (variational Perturbation Procedure) |
| IPIRDW | Independent-process (and) Isolated-resonance (approxn. Using) Distorted Waves |
| ACE | Acidity In Cloud Experiment |
| GPR | Ground-penetrating Radar |