| Acronym | Meaning |
| BARC | Bottom Antireflective Coating |
| PVN | Paraventricular Nucleus |
| CCM | Coupled-cluster Method (for Energy Level Calculations) |
| DIC | Dissolved Inorganic Carbon |
| AIEE | American Institute For Electrical Engineers |
| RXTE | Rossi X-ray Timing Explorer |
| EPFM | Elasto-plastic Fracture Mechanics |
| PAK | P21-Activated Kinase |
| GISS | Goddard Institute For Space Studies |
| MCP | Model Core Potential |