| Acronym | Meaning |
| BNN | Back-propagation Neural Network |
| CCMET | Coupled-cluster Many-electron Theory |
| GNACHO | Gravitationally Neg. Anomalous Compact Halo Object |
| NEDB | National Exposure Database (HSE) |
| DSMS | Depth-selective Moessbauer Spectroscopy |
| NSSDC | National Space Science Data Center |
| EML | Environmental Mutational Load |
| LVSEM | Low Vacuum Scanning Electron Microscopy |
| ACRE | Automatic Climatological Recording Equipment |
| CAASE | Computer Assisted Area Source Emissions |