| Acronym | Definition |
|---|
| PIRL➣Ponies in Real Life (video) |
| PIRL➣Pattern Information Retrieval Language |
| PIRL➣Private Investigators' Resources and Locator (website) |
| PIRL➣Prioritized Integrated Requirements List |
| PIRL➣Planetary Image Research Laboratory (University of Arizona; Tucson, AZ) |
| PIRL➣Program for International Research Linkages (various locations) |
| PIRL➣Perceptual Interfaces and Reality Laboratory (University of Maryland) |
| PIRL➣POSTECH (Pohang University of Science and Technology) Information Research Laboratory (South Korea) |
| PIRL➣Psychology Internet Resource List |