| Acronym | Meaning |
| PSD | Postsynaptic Density |
| RFT | Respirator Fit Test |
| SOA | Semiconductor Optical Amplifier |
| PXR | Pregnane X Receptorpar |
| BTE | Boltzmann Transport Equation |
| IMOMM | Integrated Molecular Orbital Molecular Mechanics [MO Modeling] |
| DVM | Discrete Variational Method |
| LNDO | Local Neglect Of Differential Overlap |
| EMAP | Energy-modified Adiabatic Phase (matrix Method) |
| NAAQS | National Ambient Air Quality Standards |