| Acronym | Meaning |
| ETS | External Transcribed Spacer |
| SLP | Sea Level Pressure |
| GA | Glauber Approximation (in Electron-atom Scattering) |
| TRIS | Toxic Release Inventory System |
| SSGF | Self-consistent Surface Green Function |
| RTMS | Repetitive Transcranial Magnetic Stimulation |
| SGGA | Symmetric Group Graphical Approach (in CI Calcns.) |
| GACT | Granular Activated Carbon Treatment |
| MEF | Myocyte Enhancer Factor |
| LD | Laser Desorption |