| Acronym | Meaning |
| GVDW | Generalized Van Der Waals (a Free-energy D.-functional Theory) |
| ITER | International Toxicity Estimates For Risk |
| VIP | Vasoactive Intestinal Peptide |
| DCTL | Direct Coupled Transistor Logic |
| FBR | Fast Breeder Reactor |
| XMA | X-ray Microanalysis |
| MCR | Microcarbon Residue |
| TARC | Tiered Area Response Capability |
| TIP | Temperature-independent Paramagnetism |
| WENDB | Water Enforcement National Data Base |