| Acronym | Meaning |
| HWERL | Hazardous Waste Engineering Research Laboratory (USEPA Cincinnati) |
| QAMS | Quality Assurance Management Staff (US EPA) |
| DWBE | Distorted-wave Born (approxn. With) Exchange |
| PDFT | Perturbation Density-functional Theory |
| PONA | Paraffins, Olefins, Naphthalenes, And Aromatics (in Petroleum Analysis) |
| POU | Point Of Use |
| NUCEF | Nuclear Fuel Cycle Safety Engineering Research Facility |
| EXAFS | Extended X-ray Absorption Fine Structure |
| WWW | World Wide Web |
| ACLSV | Apple Chlorotic Leaf Spot Virus |