| Acronym | Meaning |
| RSAC | Remote Sensing Applications Center (US Forest Service) |
| CMS | Complete Model Space (in Many-body Calcns.) |
| IASPEI | International Association Of Seismology And Physics Of The Earth's Interior |
| FO-NACME | First-order Nonadiabatic Coupling Matrix Elements |
| NAEG | Nevada Applied Ecology Group (of US Department Of Energy) |
| VGP | Virtual Geomagnetic Pole |
| AF | Anaerobic Filter |
| LEAR | Low Energy Antiproton Ring |
| CAFCA | Computer Assisted Flow Control And Analysis |
| ESA-IRS | European Space Agency-Information Retrieval Service |