| Acronym | Meaning |
| CCDPPA | Coupled-cluster With Double Excitation Polarization Propagator |
| BNL | Brookhaven National Laboratory |
| ACEC | Areas Of Critical Environmental Concern |
| IMHEX | Internally Manifolded Heat Exchanger (molten Carbonate Fuel Cell Design) |
| LSA | Linear Superposition Approximation |
| NAEG | Nevada Applied Ecology Group (of US Department Of Energy) |
| OCS | Outer Continental Shelf |
| RISC | Reduced-instruction-set Computer |
| WENDB | Water Enforcement National Data Base |
| AHM | Acutely Hazardous Materials |