| Acronym | Meaning |
| AIT | Autoignition Temperature(s) |
| EIT | EUV (extreme Ultraviolet) Imaging Telescope |
| OAQPS | Office Of Air Quality Planning And Standards |
| USPIO | Ultrasmall Superparamagnetic Iron Oxide |
| DAU | Drug Abuse Urine |
| UMP4SDTQ | Unrestricted Moeller-Plesset 4th-order (perturbation Theory With) Single |
| DISC | Death-inducing Signaling Complex |
| GRK | G Protein Coupled Receptor Kinase |
| PEFR | Peak Expiratory Flow Rate (lung Function) |
| ASE | Augmented Secular Equation |