| Acronym | Meaning |
| WMS | World Magnetic Survey |
| AIT | Audit Inventory Team |
| GPCP | Global Precipitation Chemistry Project |
| GA | Billion Years Unit |
| ISSN | International Standard Serial Number |
| PACE | Precipitation Augmentation For Crops Experiment |
| ALAP | As Low As Possible |
| APS | Array Processing System |
| APL | Applied Physics Laboratory |
| ATAC | Advanced Technology Advisory Committee |