| BU | base of prism up; Bethesda unit; blood urea; Bodansky unit; bromouracil; burn unit |
|---|---|
| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| Pr | praseodymium; prednisolone; presbyopia; primary; prism; production rate [of steroid hormones]; prola... |
| pr | far point of accommodation [Lat. punctum remotum]; pair; per rectum; prism |