| Acronym | Meaning |
| LILE | Large-ion Lithophile Element |
| EFOIA | Electronic Freedom Of Information Act |
| CTE | Charge-transfer Efficiency |
| PCT | Photoinduced Charge Transfer |
| AWFCO | Automatic Waste Feed Cutoff |
| CCST | Complex Coordinate Scattering Theory |
| HGMIS | Human Genome Management Information System |
| PRCPTS | Primary Reactor Coolant Pump Trip System |
| DMSP | Defense Meteorological Satellite Program |
| HBOC | Hemoglobin-Based Oxygen Carrier |