| Acronym | Meaning |
| CEES | 2-chloroethyl Ethyl Sulfide |
| PZN | Lead Zinc Niobate |
| BOW | Bond-order Wave |
| WSIA | Water Supply Improvement Association |
| GEIS | Generic Environmental Impact Statement |
| HCPT | Hard-core Perturbation Theory |
| WERL | Water Engineering Research Laboratory |
| ICV | Initial Calibration Verification |
| MDPE | Medium-density Polyethylene |
| CEPA-SD | Coupled-electron-pair Approxn. (with) Single (and) Double Excitations |