| Acronym | Meaning |
| REELM | Reflected Electron Energy Loss Microscopy |
| PMC | Permanently Manned Capability (of Space Station) |
| BATSE | Burst And Transient Source Experiment |
| CA | Collision Activation |
| CRDA | Cooperative Research And Development Agreement |
| ERF | Electrorheological Fluid |
| CPQRA | Chemical Process Quantitative Risk Assessment |
| ALS | Acetolactate Synthase |
| IRC | Information Resource Center |
| VLBI | Very Long Baseline Interferometry |