| Acronym | Meaning |
| HEAS | Health Effects Assessments |
| IAEA | International Atomic Energy Agency |
| PAA | Photon Activation Analysis |
| FACSS | Federation Of Analytical Chemistry And Spectroscopy Societies |
| BALP | Bone Alkaline Phosphatase |
| CAB | Core And Bond (molecular Partitioning Method) |
| ESPRIT | European Strategic Programme For Research And Development In Information Technology |
| OCEPA | Office Of Communications |
| HSD | Hyperspherical Diabatic (wave Functions) |
| ZINDO | Zerner's Intermediate Neglect Of Differential Overlap |