| Acronym | Meaning |
| PF | Polar Front |
| CASS | Cyclic Activated Sludge System |
| LDA | Laser-Doppler Anemometer |
| GCSOA | Gain-clamped Semiconductor Optical Amplifier |
| CART | Cloud And Radiation Testbed |
| TDDB | Time Dependent Dielectric Breakdown |
| SHOA | Second-harmonic Optical Activity |
| CIH | Certified Industrial Hygienist |
| CATA | Computer-aided Thermal Anal. |
| DSP | Digital Signal Processor |