| Acronym | Meaning |
| MERIS | Medium Resolution Imaging Spectrometer |
| IHEA | Industrial Health Engineering Association |
| MRE | Metal Responsive Element |
| NRO | Natural Reaction Orbital |
| CCCI | Correlation-consistent CI |
| QRIOSA | Quantum Reactive Infinite Order Sudden Approxn. |
| FHCP | Federal Hazard Communication Program |
| FTNMR | Fourier-transform Nuclear Magnetic Resonance |
| FAAO | Free-atom Atomic Orbital |
| CPA | Chirped Pulse Amplification |