| Acronym | Meaning |
| DAC | Disaster Assistant Center |
| IAS | Indicated Air Speed |
| GAL | Galileo |
| ALDF | Animal Legal Defense Fund |
| RI# | Richardson Number |
| NAVSTAR | NAVigation Signal Timing And Ranging System |
| P/B | Priority Playback |
| NIGEC | National Institute For Global Environmental Change |
| APDF | Accelerator Performance Demonstration Facility |
| BBSO | Big Bear Solar Observatory |