| Acronym | Meaning |
| SPE | Solid Polymer Electrolysis |
| RMA | Renote Manipulator Arm |
| P/L | Postlanding |
| RCS | Reaction Control System (Subsystem) |
| ITI | Inspection And Test Instruction |
| ROTI | Recording Optical Tracking Instrument |
| VOL | Volume |
| PDRM | Payload Deployment And Retrieval Mechanism |
| COS | Console Operating System |
| CP | Chemically Pure |