| Acronym | Meaning |
| HWHM | Half Width At Half-maximum |
| EELS | Electron Energy Loss Spectroscopy |
| REP | Relativistic Effective Potential |
| TGVBA | Target Generalized Valence Bond Approximation |
| PCB | Polychlorinated Biphenyl |
| ICCVAM | US Interagency Coordination Committee On The Validation Of Alternative Methods |
| AA | Assistant Administrator |
| CERCLA | Comprehensive Environmental Response |
| HFB | Hartree Fock Bogolyubov |
| ERD | Emergency Response Division |