| Acronym | Meaning |
| LCRA | Linear Combination Of Rydberg Orbitals |
| FIS | Field Ion Spectroscopy |
| DOD | Department Of Defense |
| IDDB | Investigational Drugs Database |
| ADI | Acceptable Daily Intake |
| CCEH | Center For Coastal Ecosystem Health |
| AIADC(3) | Ab Initio Third-order Algebraic Diagrammatic Construction Green Function Method |
| WLAN | Wireless Local Area Network |
| PACS | Physics And Astronomy Classification Scheme |
| SDR | Spin-dependent Resonance |