| A | B |
| periodontium | structures that surround and support the teeth |
| pharmacology | the study of drugs |
| phlebitis | inflammation of a vein |
| physiology | the study of the processes or functions of living organisms |
| placenta | temporary endocrine gland created during pregnancy to provide nourishment for the fetus; the afterbirth |
| plaque | thin, tenacious, filmlike deposit that adheres to the teeth and can lead to decay; made of protein and microorganisms |
| polycythemia | excess number of red blood cells |
| polydipsia | excessive thirst |
| polyphagia | excessive ingestion of food |
| polyuria | increase production and discharge of urine; excessive urination |
| postoperative | after surgery |
| postpartum | following delivery of a baby |