| Acronym | Meaning |
| ECRA | Economic Cleanup Responsibility Act |
| PSC | Polar Stratospheric Clouds (in Antarctic) |
| HERA | Hadron Electron Ring Accelerator |
| ASMC | Aortic Smooth Muscle Cell |
| VALE | Vacuum Atomic Layer Epitaxy |
| USANS | Ultra-small-angle Neutron Scattering |
| CDS | Compliance Data System (US EPA Air Database) |
| EKB | Einstein-Brillouin-Keller (quantization Method) |
| FELV | Feline Leukemia Virus |
| HTCO | High Temperature Catalytic Oxidation |