| Acronym | Meaning |
| MRAIRS | Multiple Reflection-absorption Infrared Spectroscopy |
| USABC | United States Advanced Battery Consortium |
| MSMA | Murrell-Shaw-Musher-Amos Exchange Perturbation Theory |
| CIPW | Cross, Iddings, Pirrson, And Washington (for Geology Terminology) |
| ETS | Extended Transition State (method For Bond Dissocn. Energies) |
| MEP | Matrix Effective Potential (for Scattering Calcns.) |
| MIR | Maximum Individual Risk |
| BHA | 3-tert-butyl-4-hydroxyanisole Par |
| YAG | Yttrium Aluminum Garnet |
| MLC | Myosin Light Chain |