| Acronym | Meaning |
| PO | Projection Operator |
| LCAO CO | Linear Combination Of Atomic Orbitals Crystal Orbital |
| FSGO | Floating Spherical Gaussian Orbital |
| QAMB | Quality Assurance Materials Bank (USEPA) |
| MEBS | Medium Energy Backscattering Spectrometry |
| VGO | Vacuum Gas Oil |
| HON | Hazardous Organic NESHAP |
| SAMA | Scientific Apparatus Makers Association |
| DMPK | Drug Metabolism And Pharmacokinetics |
| HFI | Hyperfine Interaction |