| Acronym | Meaning |
| NACSN | North American Commission On Stratigraphic Nomenclature |
| CVSEH | Correlated Valence Shell Effective Hamiltonian |
| GHD | Growth Hormone Deficiency |
| IRA | Interim Response Actions |
| TC/MS | Thermal Chromatography/mass Spectrometry |
| SGPR | Specific Gas Production Rate |
| HEU | Highly Enriched Uranium |
| IBAC | Immobilized Biomembrane Affinity Chromatography |
| PIMA | Polyisocyanurate Insulation Manufacturers Association |
| SRXRF | Synchrotron Radiation X-ray Fluorescence |