| Abbreviation | Definition |
|---|---|
| PVB | Projected Valence Bond |
| PVC | Partial Volume Concentration |
| PVC | Poly vinyl chloride |
| PVC | Pressure Velocity Correction |
| PVD | Pressure Vapor Deposit |
| PVL | Pressure Vacuum Level |
| PVT | Pressure, Volume, and Temperature |
| PWV | Pressurized Water Vapor |
| PXRF | portable X-Ray Fluorescence (pXRF) |
| PXY | Para-XYlene |
| PYO | Phenazine PYOcyanin |
| PYTA | Pyridyl triazole |
| PZM | Pressure Zone Microphone |
| PZT | Lead Zirconium Titanate |
| QAAA | Quantitative Amino Acid Analysis |
| QAL | Quinic Acid Lactone |
| QBA | Queen Bee Acid |
| QBMO | Quadruple Base Mechanism of Creation (QBM-O)- The GOD'S Heart of Mathematical Operating System of Cr |
| QCAT | Quick Chemical Assessment Tool |
| QCIL | Quality Chemical Industries Limited |