| Acronym | Meaning |
| N | Neutrons |
| PEN | Penicillin |
| WBR | Work Bench Rack |
| FCI | Functional Configuration Identification |
| ARTEMIS | Project Management Software System - Metier Product |
| MERL | Materials Engineering Research Laboratory |
| EBW | Electron Beam Welding |
| PMN | Program Management Network |
| PHM | Per Hundred Million |
| SRSS | Shuttle Range Safety System |