| Acronym | Meaning |
| RRS | Resonance Rayleigh Scattering |
| EX-MEG | Excited-mixed Exponentially Generated (wave Function) |
| ROSE | Residual Organic Substance Emissions |
| MIDI-N | Split-type Contracted GTO Basis Set (n = 1 |
| SOHIC | Stress-oriented Hydrogen-induced Cracking |
| SI | Scale Index |
| WSHS | Watershed Hydrologic System |
| OMB | Office Of Management And Budget |
| MELAS | Mitochondrial Myopathy |
| OFDR | Off-frequency Decoupling Resonance |