| Acronym | Meaning |
| MOVS | Molecular Orbital Valence State |
| QAMB | Quality Assurance Materials Bank (USEPA) |
| PHS | Prostaglandin H Synthase |
| C.I. | Color Index |
| IUGG | International Union Of Geodesy And Geophysics |
| TPAD | Temperature-phased Anaerobic Digestion |
| FIIA | Flow Injection Immunoassay |
| MSM | Multiple-scattering Model |
| EMPACT | Environmental Monitoring For Public Access And Community Tracking |
| VGAO | Variable Gage Atomic Orbital |