| Acronym | Meaning |
| MMP | Matrix Metalloproteinase |
| FBTR | Fast Breeder Test Reactor |
| PTR | Proton Transfer Reaction |
| AU | Astronomical Unit |
| LSS | Laser Synchrotron Source |
| HIPRE | High Internal Phase Ratio Emulsion |
| AFFTC | Air Force Flight Test Center |
| P-T-T-D | Pressure-temperature-time-deformation Path (for Metamorphic Rocks) |
| SPRI | Surface Plasmon Resonance Imaging |
| FTVS | Fourier Transform Visible Spectroscopy |