| Acronym | Meaning |
| FOS | Fiber Optic Sensor |
| CIV | Critical Ionization Velocity (ionosphere) |
| HL | Mustard-Lewisite Mixture |
| PICI | Positive-ion Chemical Ionization |
| MASE | Microwave-assisted Solvent Extraction |
| BKCM | Burkhardt-Konya-Coulson-March (for Electron Momentum Densities) |
| DPM | Disintegrations Per Minutepar |
| TF/SC | Trickling Filter/Solids Contact Process (for Wastewater Treatment) |
| CBS | Cystathionine Beta-synthase |
| JWKB | Jeffreys-Wentzel-Kramers-Brillouin (scattering Potential) |