| Acronym | Meaning |
| SPPES | Spin Polarized Photoelectron Spectroscopy |
| SRXFA | Synchrotron Radiation X-ray Fluorescence Analysis |
| MHA | Mott-Hubbard-Anderson (model In Band-structure Calcns.) |
| CNDO/2-FA | Complete Neglect Of Differential Overlap First Approxn. |
| CAPA | Critical Aquifer Protection Area |
| CINDORU | Cluster INDO Restricted-unrestricted |
| DPF | Diesel Particulate Filter |
| SONEX | Subsonic Assessment Ozone And Nitrogen Oxide Experiment |
| DCPAES | Direct Current Plasma Atomic Emission Spectrometry |
| CMA | Cylindrical Mirror Analyzer |