| Acronym | Meaning |
| NARE | North Atlantic Regional Experiment |
| SA-MCSCF | State Averaged Multiconfiguration Self-consistent Field (wave Function) (see Also ICF-CI) |
| MWCO | Molecular Weight Cut-off (in Membrane |
| MILC | Metal Induced Lateral Crystallization |
| RTPM | Real-time Polarization Modulation |
| FOQELS | Fiber Optic Quasi Elastic Light Scattering |
| PCA | Polar Cap Absorption |
| NDCT | Natural Draft Cooling Tower |
| NASC | North American Shale Composite |
| IRIS | Imaging Of Radicals Interacting With Surfaces |