| Acronym | Meaning |
| APLI | Atmospheric Pressure Laser Ionization |
| PET | Potential Evapotranspiration |
| HERV | Human Endogenous Retrovirus |
| MESA | Mesoscale Self-assembly |
| WPCF | Water Pollution Control Federation |
| GBS | Generalized Bohr-Sommerfeld (quantization Method) |
| TFE | Thermionic Fuel Element |
| IWSA | International Water Supply Association |
| IFA | Immunofluorescence Assay |
| ADCI | American Die Casting Institute |