| Acronym | Meaning |
| ARC | Advanced Regulatory Control |
| NSTL | Near Surface Transition Layer |
| SCAN | Silica-coated Aluminum Nitride |
| XGRS | X-ray/gamma-ray Spectrometer |
| CONTOUR | Comet Nucleus Tour |
| MDA | Metal Deactivator |
| MST | Mean Survival Time |
| SHR | Spontaneously Hypertensive Rat |
| CHC | Chlorinated Hydrocarbon |
| CVA-MO | Core-valence Approxn.-MO (for At. Integral Calcns.) |