| Acronym | Meaning |
| MECO | Main Engine Cutoff |
| UU | Micromicron |
| SRR | Software Requirements Review |
| MOL | Molecular |
| FSM | Fuel Supply Module |
| TAEM | Terminal Area Energy Management |
| HBT | Heflex Bio-Engineering Test |
| PDRSS | Payload Development And Retrieval System Simulator |
| SS | Space Shuttle |
| ECP | Engineering Change Proposal |