| Acronym | Meaning |
| HHG | High-order Harmonic Generation |
| FDR | Frequency Domain Reflectometry |
| TDA-2PH | Two-particle One Hole Tamm-Dancoff Approximation |
| CLC | Coordinated List Of Chemicals |
| PCE | Polychromatic Erythrocytes |
| VC | Vapor Compression |
| FPC | Fixed Partial Charge |
| CRC | Colorectal Cancer |
| SS | Space Station |
| SCOPE | Scientific Committee On The Problems Of The Environment |