| Abbreviation | Definition |
|---|---|
| OZT | Ounce Troy |
| OZW | Ounces in Weight |
| P | Penta |
| P | Per |
| p | pico- |
| P | Pot |
| P/S | Price-to-Sales ratio |
| PARTS | Precision Accuracy Relevance Tolerance And Scale |
| PAX | Personal Assistant Xenotech |
| PB | PetaByte |
| PBPS | Petabits Per Second |
| PBW | Part By Weight |
| pc | parsec |
| pc. | piece |
| PCD | Pitch Circle Diameter |
| PCE | Passenger Car Equivalents |
| PCF | Pounds per Cubic Foot |
| PCK | Pack |
| PCM | Per Calendar Month |
| PCM | Pounds Current Money |