| Acronym | Meaning |
| DAC | Derived Air Concentration |
| CGCT | Constrained Geometry Catalyst Technology [polymerization] |
| PACVD | Plasma-assisted Chemical Vapor Deposition |
| PIR | Protein Identification Resource |
| RASA | Regional Aquifer Systems Analysis (program Of USGS) |
| BMT | Bone Marrow Transplantation |
| MSSA | Methicillin-susceptible Staphylococcus Aureus |
| AGU | American Geophysical Union |
| NEKIA | National Education Knowledge Industry Association |
| EBM | Electron Beam Machining |