| Acronym | Meaning |
| RMA | Rocky Mountain Arsenal (Colorado) |
| REELS | Reflection Electron Energy-loss Spectroscopy |
| CAPTEX | Cross-Appalachian Tracer Experiment |
| ZSR | Zdanovskii-Stokes-Robinson [model] |
| BSH | Bile Salt Hydrolase |
| CCW | Charge Current Wave (type Of Hartree-Fock Wave Function) |
| APCA | Air Pollution Control Association |
| PEM | Proton Exchange Membrane |
| DCP-OES | Direct Coupled Plasma-optical Emission Spectroscopy |
| LHASA | Logic And Heuristics Applied To Synthetic Analysis |