| Acronym | Meaning |
| WKB | Wentzel-Kramers-Brillouin (phase-shift Formula For Potential Scattering) |
| ORF | Open Reading Frame (DNA Sequence) |
| CARS | Coherent Anti-Stokes Raman Spectroscopy |
| FEL | Free Electron Laser |
| SCM | Streaming Current Monitor (for Coagulation Water Treatment) |
| HTLV | Human T-lymphotropic Virus |
| PDI | Polarization-division Interferometry |
| HVPE | Hydride Vapor Phase Epitaxy |
| SAGFET | Self-aligned Gate Field Effect Transistor |
| NGST | Next Generation Space Telescope |