| Acronym | Meaning |
| HCA | Human Carbonic Anhydrase |
| HWTC | Hazardous Waste Treatment Council |
| SPIRIT | Spatial IR Imaging Telescope |
| EPEBS | Enhanced Proton Elastic Backscattering |
| TBNEM | Tight-binding Nearly Free Electron Model |
| CDKI | Cyclin Dependent Kinase Inhibitor |
| WDM | Wavelength Division Multiplexing |
| IAEH | International Association For Environmental Hydrology |
| LTTA | Low Temperature Thermal Aeration Process |
| GMO | Genetically Modified Organism |