| Acronym | Meaning |
| EFIN | Environmental Financing Information Network |
| NMRI | Nuclear Magnetic Resonance Imaging |
| EXES | Electron-induced X-ray Emission Spectrometry |
| EOT | Equivalent Oxide Thickness |
| SMP | Submitochondrial Particle |
| DAU | Drug Abuse Urine |
| NRHF | Numerical Restricted Hartree-Fock |
| PCD | Polycrystalline Diamond |
| ORD | Office Of Research And Development (USEPA) |
| ERCAM | Emission Reduction And Cost Analysis Model |