| Acronym | Meaning |
| SDIM | Scaled Diatomics-in-molecules |
| AUHF | Annihilated Unrestricted Hartree-Fock Method |
| CSH | Calcium Silicate Hydrate (cement Component) |
| ERP | Emergency Response Planning |
| HEC | Hydrogen Embrittlement Cracking |
| LFC | Loss-free Counting |
| WQBEL | Water Quality-based Effluent Limits |
| VTST | Variational Transition-state Theory |
| DTDP | Ditridecyl Phthalate |
| ISIS | Industrial Site Information System |