| Acronym | Meaning |
| RPC | Reduced Potential Curve (method For Anal. Of Potential Functions And Spectra Of Diatomic Molecules) |
| BTV | Breakthrough Volume (sorption Capacity Measurement) |
| IRI | Industrial Research Institute |
| QDWT | Quantum Density-wave Theory (in Theory Of Freezing Of Quantum Systems) |
| CDER | Center For Drug Evaluation And Research |
| BO | Born Oppenheimer |
| IOC | Inorganic Chemical |
| ICBA | Improved (final-state) Coulomb Born Approximation |
| PTM | Perturbation Trajectory Method (in Gas-surface Collision Dynamics) |
| OBD | Optical Beam Deflection |