| Acronym | Meaning |
 | RMCSTEP | Repartitioned Multiconfigurational Spin-tensor Electron Propagator |
 | UNITAR | United Nations Institute For Training And Research |
 | SPELEEM | Spectroscopic PhotoEmission And Low Energy Electron Microscope |
 | BOO | Bond Orientational Order |
 | FIE | Flow-injection Extraction |
 | RAL | Recommended Allowable Limit |
 | UPD | Underpotential Deposition |
 | HWS | Hazardous Waste Site |
 | SHT | Surface Hopping Trajectory (model For Mol. Scattering) |
 | SI | Stieltje Imaging (method For Calcg. Wave Functions) |