| Acronym | Definition |
|---|
| PPX➣Prophylaxis |
| PPX➣Protein Phosphatase X (now Protein Phosphatase 4) |
| PPX➣PopSci Predictions Exchange (Popular Science feature) |
| PPX➣Parallel Port Multiplexor |
| PPX➣Parallel Packet Express (control/data flow) |
| PPX➣Point to Point Switching |
| PPX➣Personne Particulièrement Extraordinaire (French: Especially Extraordinary Person) |
| PPX➣Puttied Project X (gaming) |
| PPX➣Posture Planning Express |