| Acronym | Meaning |
| ARPA | Augmented Random Phase Approximation |
| CPA | Coupled-pair Approximation |
| HMIX | Hazardous Materials Information Exchange |
| GHL | Generalized Heitler-London |
| TRE | Total Resource Effectiveness |
| SIPP | Sodium Iron Pyrophosphatepar |
| SREL | Savannah River Ecology Laboratory |
| BRFI | Brewing Research Foundation International |
| DEC | Department Of Environmental Conservation |
| AWRE | Atomic Weapons Research Establishment |