| Acronym | Meaning |
| GUGA | Graphical Unitary Group Approach |
| SOP | Standard Operating Procedure |
| ZCCSD | Z-vector Coupled Cluster (with) Single (and) Double Excitation |
| MBAS | Methylene Blue Active Substance (surfactant) |
| GOES | Geostationary Operational Environmental Satellite |
| ABF | Activated Biofilter |
| SSPM | Scanning Surface Potential Microscopy |
| FET | Field Effect Transistor |
| NRAO | National Radio Astronomy Observatory |
| STECS | Solar Thermal Electric Conversion Systems |