| Acronym | Meaning |
| ELSA | Electron Stretcher Accelerator |
| ACAMS | Automatic Continuous Air Monitoring System |
| HSC | Hyperspherical Coordinate (representation In Calcns. On Electron-atom Scattering) |
| FRC | Free Residual Chlorine |
| ASIC | Application Specific Integrated Circuit |
| RBS | Rutherford Backscattering Spectrometry |
| ANATEX | Across North America Tracer Experiment |
| FEMP | Federal Energy Management Program |
| NMRI | Nuclear Magnetic Resonance Imaging |
| WTIE | Wastewater Treatment And Information Exchange |