| Acronym | Meaning |
| ET | External Tank |
| MOMS | Modular Optoelectronic Multispectral/Stereo Scanner |
| EOS | Electrophoresis Operations In Space |
| BIMDA | Bioserve-Instrumentation Technology Associate Materials Dispersion Analysis |
| RMS | Remote Manipulator System |
| LEDA | On-line Earthnet Data Access |
| FFCC | Free-Flyer Control Centre |
| AXAF | Advanced X-ray Astrophysics Facility |
| PC | ParseC (usu. Pc) |
| CM | Command Module |