| Acronym | Meaning |
| INFCE | International Nuclear Fuel Cycle Evaluation |
| OVOS | Optimized Virtual Orbital Space Approximation (for Correlated Calcns.) |
| ICMA | Immunochemiluminometric Assay |
| ACTI | Advanced Computational Technology Initiative |
| PAC | Powdered Activated Carbon |
| ZPE | Zero-point Energy |
| HWRTF | Hazardous Waste Restrictions Task Force |
| IRGCHAZ | Intercritically Reheated Grain-coarsened Heat-affected Zone |
| HNSCC | Head And Neck Squamous Cell Carcinoma |
| IES | Internal Eliminated Sequence |