| Acronym | Meaning |
| MTEL | Maximum Tolerable Exposure Levels |
| MDMI | Monodisperse Dried Microparticulate Injector |
| MIDP | Microwave Induced Delayed Phosphorescence |
| TFR | Thin Film Resonator |
| BWO | Backward Wave Oscillator |
| PCT | Patent Cooperation Treaty |
| FDA | Food And Drug Administration |
| OIA | Office Of International Activities |
| HSOS-CCSD | High-spin Open-shell-CCSD |
| NMCSCF | Numerical Multiconfiguration Self-consistent Field |