| Acronym | Meaning |
| ORGDL | Oak Ridge Gaseous Diffusion Lab. |
| GCNF | Germ Cell Nuclear Factor |
| LNDO | Local Neglect Of Differential Overlap |
| NCLAP | National Crop Loss Assessment Program |
| NVPA | No-virtual-pair Approxn. |
| FOBT | Fecal Occult Blood Test |
| CDWF | Correlated-determinant Wave Function |
| DIG | Diffuse Ionized Gas |
| AQL | Acceptable Quality Levels |
| AMTEC | Alkali Metal Thermoelectric Converter |