| PC | avoirdupois weight [Lat. pondus civile]; packed cells; paper chromatography; paracortex; parent cell... |
|---|---|
| PCFIA | particle concentration of fluorescence immunoassay |
| PDC | parkinsonism dementia complex; pediatric cardiology; penta-decylcatechol; phosducin; physical depend... |
| pH | hydrogen ion concentration |
| pOH | hydroxide ion concentration in a solution |