| Acronym | Meaning |
| CASI | Compact Airborne Spectrographic Imager |
| DE | Dynamics Explorer (spacecraft) |
| MSH | Melanocyte-stimulating Hormone |
| MO | Molecular Orbital |
| SETB | Semiempirical Tight Binding |
| IPSP | Inhibitory Postsynaptic Potential |
| UBT | Urea Breath Test |
| CRP | CAMP Receptor Protein |
| DIDA | Direct Isotope Dilution Analysis |
| DFS | Daily Flow System (file Within STORET) |