| Acronym | Meaning |
| ECL | Emitter Coupled Logic |
| OETP | Orbiter Electron Temp. Probe |
| CCDTL | Coupled-cavity Drift-tube Linac |
| EDXA | Energy-dispersive X-ray Analysis |
| BGH | Bovine Growth Hormone |
| ERP | Enterprise Resource Planning |
| BPJ | Best Professional Judgement |
| LEU | Low Enrichment Uranium |
| CLIP | Corticotropin-Like Intermediate-lobe Peptide |
| DAC | Derived Air Concentration |