| Acronym | Definition |
|---|
| TIRF➣Transmucosal Immediate-Release Fentanyl (medicine) |
| TIRF➣Traffic Injury Research Foundation |
| TIRF➣The International Research Foundation for English Language Education (Ann Arbor, MI) |
| TIRF➣Total Internal Reflection Fluorescent (microscopy) |
| TIRF➣Total Internal Reflectance Fluorimetry (biomedical technology) |
| TIRF➣Transmittal/Information Request Form (US NASA) |
| TIRF➣The Indian Rafting Foundation |