| Acronym | Definition |
|---|
| PX | Pain |
| PX | Pixel |
| PX | Post Exchange (US Army base retail store) |
| PX | Prefix (Morse Code abbreviation) |
| PX | Pressure (engine) |
| PX | Prescription |
| PX | Part Exchange (UK automobile advertisements) |
| PX | Primary Index (File Name Extension) |
| PX | Patient Experience |
| PX | Praxair, Inc (stock symbol) |
| PX | Prognosis |
| PX | Physical Examination |
| PX | Power Exchange |
| PX | Paraxylene |
| PX | Pneumothorax |
| PX | Pedro Ximinez (sherry grape variety) |
| PX | Processing Index |
| PX | Penreverse (Hyper Logo command) |
| PX | Photo Exchange |
| PX | Product Exchange |
| PX | Physical History |
| PX | Platform Express (Mentor Graphics software) |
| PX | Air Niugini, Papua New Guinea (IATA airline code) |
| PX | Pibb Xtra (soft drink) |