| Acronym | Meaning |
| LAOL | Los Alamos Opacity Library |
| RCA | Request For Contract Action |
| ETR | Element Test Review |
| PMB | Performance Measurement Baseline |
| NS | Nanoseconds |
| HST | Hubble Space Telescope |
| HALOE | Halogen Occultation Experiment |
| PID | Prototype International Directory |
| ASAS | Advanced Solid-State Array Sensor |
| DCX | Delta Clipper Experimental |