| Acronym | Meaning |
| MEIS | Medium Energy Ion Scattering |
| ORI | Octane Requirement Increase |
| PPES | Photopyroelectric Spectroscopy |
| EDM | Electrical Discharge Machining |
| SPARS | Spatially Resolved Spectroscopy |
| ICAC | Institute Of Clean Air Companies |
| TLCP | Thermotropic Liquid Crystal Polymer |
| ALR | Airlift-loop Reactor |
| RBL | Rat Basophilic Leukemia |
| GEIA | Global Emissions Inventory Assessment |