| Acronym | Meaning |
| HERL | Health Effects Research Laboratory |
| EXAMS | Exposure Analysis Modeling System |
| SAPS | Spherical Average Pseudopotential |
| RNA | Ribonucleic Acid |
| TCXO | Temperature-compensated Crystal Oscillator |
| IDTIMS | Isotope Diln. Thermal Ionization Mass Spectrometry |
| RERS | Resonance-enhanced Raman Scattering |
| AISIT | Automatic Intelligent Sampler For Inorganic Trace Constituents |
| TDCS | Triple Differential Cross Section |
| ADP | Adenosine Diphosphate (RN 58-64-0) |