| Acronym | Meaning |
| OU | Odor Units |
| VSA | Vacuum Swing Adsorption |
| EOT | Equivalent Oxide Thickness |
| SULEV | Super Ultra-low Emission Vehicle |
| IPCC | Intergovernmental Panel On Climate Change |
| IUPPA | The International Union Of Air Pollution Prevention Associations |
| AICS | Australian Inventory Of Chemical Substances |
| HGSI | The Human Genome Sequencing Index |
| ARPA | Augmented Random Phase Approximation |
| RXR | Retinoid X Receptor |