| Acronym | Meaning |
| ARIP | Accidental Release Information Program |
| CLL | Chronic Lymphocytic Leukemia |
| SNAP | System For Nuclear Auxiliary Power |
| POP | Persistent Organic Pollutant |
| NSCF | Non-self-consistent Field |
| AGRP | Agouti-related Protein |
| NPSO | Nonpaired Spatial Orbital |
| CDW | Coulomb Distorted Wave (for Scattering Calcns.) |
| PDR | Photodissociation Region |
| CPC | Centrifugal Partition Chromatography |