| Acronym | Meaning |
| VLF | Very Low Frequency (radiowaves) |
| GNRH | Gonadotropin Releasing Hormone |
| CCM | Coupled-cluster Method (for Energy Level Calculations) |
| TSMG | Top-seeded Melt Growth |
| UASB | Upflow Anaerobic Sludge Blanket |
| ESRIN | European Space Research Institute |
| ISS | Ion Scattering Spectroscopy |
| DRI | Direct Reduced Iron |
| SHIV | Simian-human Immunodeficiency Virus |
| SIR | Statutory Invention Registration |