| Acronym | Definition |
|---|
| PTOL➣Pentaerythritol (chemistry) |
| PTOL➣Physics Today Online (American Institute of Physics) |
| PTOL➣Polskiego Towarzystwa Orzecznictwa Lekarskiego (Polish: Polish Society of Medical Jurisprudence) |
| PTOL➣Phototransformable Optical Label (microscopy) |
| PTOL➣Peacetime Operating Level |