| Acronym | Meaning |
| CDC | Center For Disease Control |
| PC-TD-SCF | Perturbation-corrected Time-dependent SCF |
| CSML | Chemical Structure Markup Language |
| IGWMC | International Ground Water Modeling Center |
| PEC | Predicted Environmental Concentration |
| LMO | Localized Molecular Orbital |
| CDIAC | Carbon Dioxide Information Analysis Center |
| AEC | Acceptable Effluent Concentration |
| LPLC | Lift Plus Lift Cruise |
| MSFIA | Multisyringe Flow Injection Analysispar |