| Acronym | Meaning |
| HCD | Hollow Cathode Discharge |
| PNS | Peripheral Nervous System |
| CORAL | Control Retrofit Assessment Library [EPRI Software] |
| TDLAS | Tunable Diode Laser Absorption Spectroscopy |
| NMA | Nuclear Microanalysis |
| GAXRD | Glancing Angle X-ray Diffraction |
| ARIAP | Acid Rain Impact Assessment Program |
| TSAE | Two-state Atomic Expansion (model For Atom-ion Collisions) |
| MAG | Metal Arc Gas (welding) |
| SMOKE | Surface Magneto-optic Kerr Effect |