| Abbreviation | Definition |
|---|---|
| ProcEurSocToxicol | Proceedings of the European Society of Toxicology |
| ProcSocExpBiolMed | Proceedings of the Society for Experimental Biology and Medicine |
| ProgExpTumorRes | Progress in Experimental Tumor Research |
| PromToksikolKlin | Promyshlennaya Toksikologiya Klinika |
| PRRC | Professional Recruitment and Retention Cttee |
| PS | Per Second |
| PSALM | Principal and Senior Assistant Librarians Meeting |
| PSI | Published Subject Indicator |
| PSLT | Portable Sign Language Translator |
| PSML | Partner Services Media Library |
| PSPL | Paul Sawyier Public Library |
| PSTL | Professional Services Tool Library |
| PSTL | Professional Services Tools Library |
| PSX | Play Station X |
| PT | Preferred Terms (MedDRA) |
| PTFL | Phil Theo Faculties Library |
| PTFL | Philosophy and Theology Faculties Library |
| PTL | Protection Testing Library |
| PTLL | Patent and Technology Library of Latvia |
| PTO | Please Turn the Page |