| Acronym | Meaning |
| MVA | Megavolt Ampere |
| FCA | Frequency Control Analysis |
| SCIU | Selector Control Interface Unit |
| PR | ProblemReport |
| OIA | Orbiter Interface Adapter |
| PRSD | Power Reactant Storage And Distribution |
| LCHTF | LowCYcle High Temperature Fatigue |
| CDU | CRT Display Unit |
| NC | Noise Criteria |
| ND | Neodymium |