| MPF | maturation promoting factor; mean power frequency |
|---|---|
| MPO | maximum power output; minimal perceptible odor; myeloperoxidase |
| MSCP | mean spherical candle power |
| PF | pair feeding; peak flow; perfusion fluid; pericardial fluid; periosteal fibroblast; peritoneal fluid... |
| PSD | particle size distribution; peptone, starch, and dextrose; periodic synchronous discharge; phase-sen... |