| Acronym | Meaning |
| AFFF | Aqueous Film-forming Foam |
| LEEP | Low-energy Solvent Extraction Process |
| PB | Particle Beam |
| IGAIM | Individual Gages (for) Atoms In Molecules |
| AET | Apparent Effects Thresholds |
| OER | Oxygen Enhancement Ratio |
| FSR | Fractional Synthesis Rate |
| CCA | Close-coupling Approximation |
| AHCPR | Agency For Health Care Policy And Research |
| MIKE | Mass-analyzed Ion Kinetic Energy (spectrometry) |