| Abbreviation | Definition |
|---|---|
| PLA | Plastic Liquefying Agent |
| PLA | Polystyrene Latex Aerosol |
| PLC | Programmable Logic Controller |
| PLCC | Plastic Leadless Chip Carrier |
| PLV | Pshenichnyi Levin Valadier |
| PMD | Plastic Metal and Drinks |
| PMDI | polymeric MDI (methylene di isocyanate) |
| PMMA | Polymethylmethacrylate |
| PMP | PolyMethylPentene |
| PNR | Polynorborane Rubber |
| PNS | Paraneoplastic neurologic syndrome |
| PNSF | Plastic Not So Fantastic |
| PO | Polyolefin |
| POAE | Plastic Omnium Auto Exterior |
| POB | Plastic Ono Band |
| POETRY | Public Outreach Education Teaching And Reaching Youth |
| POL | Polyolefin |
| POLISTIROLO | Polistirolo |
| POM | Plastics Outperforming Metals |
| POM | Polyoxymethylene (Acetal) |