| Acronym | Meaning |
| HRS | Hazard Ranking System |
| OUR | Oxygen Uptake Or Utilization Rate |
| CCSD-GF | CCSD-green Function |
| FTP | US Federal Test Procedure (for Exhaust Catalysts) |
| SE | Standard Error |
| GNOME | GNU Object Modeling Environment |
| BTX | Benzene, Toluene, And Xylene |
| TOTE | Tropical Ozone Transport Experiment |
| LAD | Left Anterior Descending |
| STXM | Scanning Transmission X-ray Microscope |