| Acronym | Meaning |
| CCPA | Cluster Coherent Potential Approximation (for Electronic Structure Calcns.) |
| ODC | Ozone Depleting Chemical |
| PCI-X | Parametrized Configuration Interaction (with Parameter) X |
| SCF | Single Crystal Fiber |
| DO | Dissolved Oxygen |
| QENS | Quasielastic Neutron Scattering |
| WGS | Water Gas Shift Reaction |
| CTEM | Conventional Transmission Electron Microscopy |
| HAA | Heterocyclic Aromatic Amine |
| AUSM | Advanced Utility Simulation Model |