| Acronym | Meaning |
| NIEHS | National Institute Of Environmental Health Science |
| HSAB | Hard And Soft Acids And Bases |
| CCRIS | Chemical Carcinogenesis Research Information System |
| ICWM | Institute Of Chemical Waste Management |
| PGNAA | Prompt Gamma Neutron Activation Analysis |
| RHFR | Relativistic Hartree-Fock-Roothaan |
| XRS | X-Ray Spectroscopy |
| ALCHEMI | Atomic Location By Channeling Enhanced Microanalysis |
| GAIN | Global Agricultural Information Network |
| DDM | Decoupled Direct Method |