| Acronym | Meaning |
| PRE | Proton Relaxation Enhancement |
| RIR | Relative Inhalation Risk |
| MODS | Magneto-Optical Difference Spectroscopy |
| GMT | Glass Mat Thermoplastic |
| CBEDP | Convergent-beam Electron-diffraction Pattern |
| EMT | Effective-medium Theory (of Bonding In Metallic Systems) |
| ZECSY | Zero-quantum Coherence Correlation Spectroscopy |
| SSQM | Supersymmetric Quantum Mechanics |
| IOC | Intergovernmental Oceanographic Commission |
| DMTA | Dynamic Mechanical Thermal Analysis |