| Acronym | Meaning |
| GMC | Giant Molecular Cloud |
| LADD | Lifetime Average Daily Dose |
| HDF | Halogenated Dibenzofuran(s) |
| WSTCM | Watson-sphere Terminated Cluster Model (in Electronic-structure Calcns. On Crystal Defects) |
| FALS | Familial Amyotrophic Lateral Sclerosis |
| CIIT | Chemical Industry Institute Of Toxicology |
| HEMA | Hydroxyethyl Methacrylate |
| CEES | 2-chloroethyl Ethyl Sulfide |
| EPA | United States Environmental Protection Agency |
| ISE | Ion Selective Electrode |