| pa | through the anus [Lat. per anum]; yearly [Lat. per annum] |
|---|---|
| PhD | Doctor of Pharmacy [Lat. Pharmaciae Doctor]; Doctor of Philosophy [Lat. Philosophiae Doctor] |
| PM | after death (Lat. post mortem); after noon [Lat. post meridiem]; mean pressure; pacemaker; pantomogr... |
| pond | by weight [Lat. pondere]; heavy [Lat. ponderosus] |
| PR | by way of the rectum [Lat. per rectum]; far point [of accommodation] [Lat. punctum remotum]; palindr... |