| Acronym | Meaning |
| ATLEED | Automated Tensor Low-energy Electron Diffraction |
| HSIA | Halogenated Solvents Industry Alliance |
| SOCI | Spin-orbit Configuration Interaction |
| HRATS | High-Rate Anaerobic Treatment Systems |
| PPAC | Parallel-plate Avalanche Counter |
| VIMOS | VIsible MultiObject Spectrograph |
| MCD | Magnetic Circular Dichroism |
| CCA | Coupled-cluster Approach |
| MCRG | Monte Carlo Renormalization Group |
| ACSI | Accelerated Strategic Computing Initiative (for Fusion Reactor) |